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Which flight routes are the most popular in the world?

Which flight routes are the most popular in the world?

CNN4 hours ago
Which flight routes are the most popular in the world?
The busiest flight routes in the world are all domestic flights, from New York-Los Angeles in the US to Barcelona-Mallorca in Spain. CNN's Lilit Marcus breaks down why the busiest air route on the planet brings so many people to this Asian holiday island.
00:43 - Source: CNN
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Which flight routes are the most popular in the world?
The busiest flight routes in the world are all domestic flights, from New York-Los Angeles in the US to Barcelona-Mallorca in Spain. CNN's Lilit Marcus breaks down why the busiest air route on the planet brings so many people to this Asian holiday island.
00:43 - Source: CNN
Nationwide demonstrations across Israel demanding hostage deal
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Zines not hashtags: Gen-Z's new protest playbook
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Canadian government orders end to Air Canada strike
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Spike Lee's Reaction to Trump's Smithsonian Orders
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Russian media reacts positively to Trump-Putin Summit
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01:23 - Source: CNN
London's toxic trash 'volcano'
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02:05 - Source: CNN
Hong Kong twin pandas turn one
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00:43 - Source: CNN
Football player's emotional press conference sparks conversation
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Miles from the ocean, there's incredible diving beneath the streets of Budapest
Miles from the ocean, there's incredible diving beneath the streets of Budapest

CNN

time10 minutes ago

  • CNN

Miles from the ocean, there's incredible diving beneath the streets of Budapest

FacebookTweetLinkEDITOR'S NOTE: This CNN Travel series may have adjacent ads by the country it highlights. CNN retains full editorial control over subject matter, reporting and frequency of the articles and videos, in compliance with our policy. Every day, crowds flock to the Lukács Thermal Baths in Budapest, soaking in warm mineral-rich pools as yellow trams clatter along Frankel Leó Street. Most never suspect that just yards away, beneath the city's historic streets, lies a hidden world: a vast underwater cave system heated by geothermal springs. From its entrance, tucked into the base of Rózsadomb — Rose Hill — an affluent neighborhood of elegant villas and tree-lined streets, the Molnár János Cave stretches for over 3.6 miles (5.8 kilometers) and plunges nearly 300 feet (90 meters) below the surface. Flooded with crystal-clear water at the temperature of a warm bath, it is one of the largest active thermal water caves in the world, and among the rare few open to certified cave divers. The way into the cave is easy to miss from the street. Next to a rocky limestone cliff, a small lake covered with lilies and algae glistens beside a crumbling 19th-century building that resembles an Ottoman bathhouse. On the firewall next to it, a mural of a diver hints at the secrets below. Through a gate, past an old bathhouse — once one of Hungary's first concrete structures — a narrow alley leads to an unmarked doorway in the cliff. Above it, a sign reads 'Happiness Factory,' flanked by smiling emojis. Once inside the brick-lined entranceway, the temperature rises with the geothermal heat. Diving gear lines the corridor. At the end, behind a drawn curtain, a stairwell drops into a rocky entrance where black waters wait in the gloom. Here, divers step into the warm water, their headlamps piercing through the darkness as they descend into a silent, shimmering world. Budapest is famous for its ornate bathhouses and spas, but its thermal waters have done more than soothe muscles and ease ailments. Over millennia, the same geothermal activity that feeds the city's baths has carved a network of more than 200 caves beneath its streets — as mineral-rich springs slowly dissolved the surrounding limestone, marlstone and karst rock. Molnár János is still alive and growing. Water rich in hydrogen sulfide and carbon dioxide continues to percolate through the rock, creating a mildly acidic cocktail that eats at the walls. The result is a Swiss cheese labyrinth of chambers and passages. 'It's very rare to have warm-water caves,' explains Csaba Gőcze, a dive guide with MJ Cave, the local operator offering guided cave dives. 'Usually, cave diving means 4 to 15 degrees Celsius (39 to 59 Fahrenheit) water. Here, it's 27 °C (80 °F) in the upper layers.' The warmth comes in distinct bands: 27 °C at the surface, dropping to 20 °C (68 °F) and then to 17–18 °C (62–64 °F) as colder water from the Buda Hills mingles below. Some of the cave's water still feeds the nearby Lukács Baths via an underground pipe — though the original inlet, by the stone steps that plunge into the water, was rerouted to give divers easier access. Molnár János surprises many first-time visitors. Unlike the tight, twisting passages of other caves, it offers spacious chambers and gentle currents. 'It's absolutely gorgeous,' Csaba says. 'Huge, open spaces and very few restrictions. It's a relatively easy dive — if you're properly trained.' That training is essential. Only certified cave divers are allowed in. The complete darkness and the fragile environment demand experience. The water is perfectly clear — until someone brushes the side of the cave or disturbs the soft bottom, sending fine silt particles billowing into the beam of a headlamp. 'You can usually see as far as your torchlight reaches,' Csaba says. 'But if people touch the walls or kick up the silt on the bottom of the passages, visibility drops to zero very fast.' To prevent this, divers follow a guideline strung a meter above the cave floor, ensuring the waters remain pristine. Their caution is rewarded with a tour of a surreal landscape: mineral-streaked walls studded with crystals, chambers shifting in color and texture from one to the next. 'Several places in the cave look completely different, as you have different colored rocks, areas with crystals, and areas without,' Csaba says. 'The best dives are where you go through several of these areas, so you experience it all.' Shrimp — nearly invisible — dart in the light. Fossilized seashells and sea urchins still cling to the walls, remnants of the Pannonian Sea, which millions of years ago covered much of modern-day Hungary. The cave still hasn't been fully explored. The officially mapped network runs 3.6 miles, but new passages are found regularly. Volunteer explorers make weekly expeditions into the caves to make measurements, lay new lines, and make updates to maps that have yet to be published. 'The official map says it's around 5,800 meters, but there are passages without lines,' Csaba explains. 'Some don't lead anywhere, but others might be part of something bigger.' He believes the cave could stretch to five miles. Researchers also collect water samples, monitoring for microplastics and signs of pollution. A 2022 study detected some contamination at the cave's known dripwater entry points, but the recently explored areas remain untouched and pristine. For certified cave divers, joining a dive here is remarkably straightforward. MJ Cave runs morning dives by reservation. After a briefing and gear setup, the first one-hour dive follows the main guideline, with optional deeper exploration afterward — some dives can reach nearly 200 feet (60 meters) and require decompression stops. Traveling to Hungary without equipment isn't a problem; full gear rental is available on-site.

Forbes Daily: European Allies Join Zelenskyy And Trump To Talk Ceasefire
Forbes Daily: European Allies Join Zelenskyy And Trump To Talk Ceasefire

Forbes

time11 minutes ago

  • Forbes

Forbes Daily: European Allies Join Zelenskyy And Trump To Talk Ceasefire

A new $250 fee for visitors to the U.S. will deal a multibillion-dollar blow to the already-reeling U.S. tourism industry, industry experts say. The controversial visa integrity fee is expected to deter visitors and cost the economy $11 billion over three years, according to an analysis by Tourism Economics. The Congressional Budget Office says the fee will generate around $27 billion in revenue for the government over a decade, but their estimates don't capture the full impact—fewer tourists translates to less spending, lower tax revenue and job losses in the industry. 'I think in the minds of congressional leaders, foreign visitors don't vote, so making them pay more … wouldn't come at any political cost,' Erik Hansen of the U.S. Travel Association told Forbes . 'But the problem is it comes at a huge economic cost to American businesses.' KEVIN DIETSCH/GETTY IMAGES; ANDREW HARNIK/GETTY IMAGES Elon Musk and Sam Altman weren't always at odds—they met in the early 2010s, bonded over their shared concerns about artificial intelligence, and cofounded OpenAI in 2015 as a nonprofit with the mission of developing AI in a responsible manner. But the vibes started souring in 2023, and now the OpenAI CEO is challenging his former friend, one company at a time: Twitter, Tesla and even Neuralink are in his sights. European leaders will join Ukrainian President Volodymyr Zelenskyy in a meeting with President Donald Trump in Washington, D.C. on Monday—setting up what appears to be crucial talks as Trump pushes for a ceasefire in the war in Ukraine, following his Friday meeting in Alaska with Russian President Vladimir Putin that yielded no such deal. European Commission President Ursula von der Leyen and NATO Secretary-General Mark Rutte will reportedly take part, as well as leaders from France, Italy, Germany, the U.K. and Finland. UnitedHealth, which operates America's largest health insurer UnitedHealthcare, has tanked nearly 40% this year, making it the Dow Jones Industrial Average's worst performer. But Warren Buffett's Berkshire Hathaway and other high-profile investors are buying the dip: Berkshire disclosed in an SEC filing last week that it purchased over 5 million shares of UnitedHealth Group in the second quarter, briefly sending the stock market to record heights Friday. MONEY + POLITICS Washington, D.C. sued the Trump Administration on Friday over its takeover of the city's police department, arguing the president overstepped his authority as he has aimed to crack down on alleged crime and homelessness. D.C. Attorney General Brian Schwalb called the government's actions a 'brazen usurpation of the district's authority,' as the Home Rule Act, which Trump has used to justify the takeover, also gives the city the right to self-govern. In an attempt to end the state's emissions standards, the Justice Department sued California over its electric vehicle mandate, which the DOJ says is an attempt to 'undermine federal law.' The state's 'Clean Truck Partnership' requires a share of heavy-duty vehicles to be electric by 2035, part of an overall effort for all new passenger trucks, cars and SUVs sold in California to be zero-emission vehicles by that time. SPORTS + ENTERTAINMENT People may consider Rob Gronkowski to be a 'dumb jock,' but the four-time Super Bowl champion has leaned into his affability and self-described 'simple' nature to build one of the most in-demand personal brands of any retired athlete. Including his endorsements with companies such as insurer USAA, online sportsbook FanDuel and Monster Energy, along with his broadcasting gig at Fox and event appearances, Forbes estimates Gronkowski earns at least $10 million annually from his business endeavors before taxes and agents' fees. TRENDS + EXPLAINERS As news of the latest financial fraud continues to make headlines, a recent study from cybersecurity firm BioCatch aims to better understand how financial institutions are fighting fraud and financial crime, the impact of emerging technologies on the dark economy, and the level of collaboration among competing institutions, law enforcement and governments. To stop fraud, it's critical to improve technology, information sharing between institutions and communication, the report found. MORE: The FBI is cautioning about a new scam in which fraudsters pretend to be lawyers with fictitious firms, often using social media to offer their services to scam victims while claiming to have the authority to investigate recovery cases. It's critical to do your due diligence by checking for potential red flags such as references to fake government or regulatory entities or requests for payment in crypto or prepaid gift cards. DAILY COVER STORY Forget BLS. Here's How To Take The Economy's Temperature Without Using Government Data ILLUSTRATION BY MACY SINREICH FOR FORBES After a weak July jobs report and a downward revision of May and June numbers, President Donald Trump pulled a 'kill the messenger' move by firing Bureau of Labor Statistics Commissioner Erika McEntarfer. In her place, Trump has nominated E.J. Antoni, a Heritage Foundation economist, MAGA stalwart and BLS critic. Some worry that if Antoni is confirmed, the numbers coming out of BLS, which tracks the most-watched economic stats in the country—including inflation, unemployment and payrolls—will be altered to support claims Trump is making about the economy. Meanwhile, many of the Trump faithful believe those numbers already were being doctored. There's long been a cottage industry of websites promoting alternative inflation figures. They almost always say it's higher than the official number. The same for unemployment—and even GDP has its skeptics who will tell you we're in a recession no matter what the Bureau of Economic Analysis says. You don't have to be a crank or mistrust the government to appreciate alternative indicators. Even economist Alan Greenspan, who chaired the Federal Reserve for 18 years, had his favorite measure, which he believed could predict a coming downturn or recovery before the official numbers: sales of men's underwear. There's no shortage of alternatives. Some are straightforward—private payroll counts, consumer price trackers. Others are quirky—skirt lengths, lipstick sales, pawn shop activity. They're imperfect and difficult to verify if you don't trust the official data. But they can serve as a gut check, especially if Antoni follows through on his suggestion to pause the monthly jobs even the most straightforward indicators need solid ground to stand on, which brings us to a tricky catch: Alternative data is only as good as the reliable standard you measure it against. WHY IT MATTERS 'President Trump's attack on the Bureau of Labor Statistics, accusing the agency of rigging jobs and inflation data, has intensified long-standing public skepticism about official figures,' says Forbes senior reporter Brandon Kochkodin. 'These numbers shape Federal Reserve policies, business decisions and investor confidence. For those doubting the stats, a mix of serious and quirky alternatives—like payroll data or skirt lengths—offers a gut check on the economy's pulse. Hopefully, official data (depending on your perspective) holds or becomes firm, but tracking these alternative indicators, whether out of skepticism or just for fun, can help you cross-check future numbers.' MORE Small Business Optimism Rises In May Despite Tariff Chaos FACTS + COMMENTS A massive property has hit the market in New York's exclusive Tuxedo Park village, which has housed billionaires, socialites and business tycoons since the late 1800s. The Gilded Age estate is the largest in the historic Hudson River Valley town: $29.5 million: The list price for the 151-acre estate 14,000: The square footage in the main house Fewer than 400: The number of residents in Tuxedo Park, whose homes are listed in the National Register of Historic Places STRATEGY + SUCCESS AI is reshaping the modern career ladder, and new college graduates are already feeling the impact, with one report showing a 50% drop in new grad hiring in 2024 compared to pre-pandemic levels. Still, while AI will eventually eliminate some job categories, it will also create new opportunities—and it's important for young people to build strong professional networks and master AI tools by learning how to use them as well as how to judge, curate and refine AI output. VIDEO A nearly billion-dollar movie franchise is returning for the first time in more than a decade. Which franchise is it? A. Scary Movie B. Divergent C. Halloween D. Star Trek Check your answer. Thanks for reading! This edition of Forbes Daily was edited by Chris Dobstaff and Caroline Howard.

Miles from the ocean, there's incredible diving beneath the streets of Budapest
Miles from the ocean, there's incredible diving beneath the streets of Budapest

CNN

time11 minutes ago

  • CNN

Miles from the ocean, there's incredible diving beneath the streets of Budapest

EDITOR'S NOTE: This CNN Travel series may have adjacent ads by the country it highlights. CNN retains full editorial control over subject matter, reporting and frequency of the articles and videos, in compliance with our policy. Every day, crowds flock to the Lukács Thermal Baths in Budapest, soaking in warm mineral-rich pools as yellow trams clatter along Frankel Leó Street. Most never suspect that just yards away, beneath the city's historic streets, lies a hidden world: a vast underwater cave system heated by geothermal springs. From its entrance, tucked into the base of Rózsadomb — Rose Hill — an affluent neighborhood of elegant villas and tree-lined streets, the Molnár János Cave stretches for over 3.6 miles (5.8 kilometers) and plunges nearly 300 feet (90 meters) below the surface. Flooded with crystal-clear water at the temperature of a warm bath, it is one of the largest active thermal water caves in the world, and among the rare few open to certified cave divers. The way into the cave is easy to miss from the street. Next to a rocky limestone cliff, a small lake covered with lilies and algae glistens beside a crumbling 19th-century building that resembles an Ottoman bathhouse. On the firewall next to it, a mural of a diver hints at the secrets below. Through a gate, past an old bathhouse — once one of Hungary's first concrete structures — a narrow alley leads to an unmarked doorway in the cliff. Above it, a sign reads 'Happiness Factory,' flanked by smiling emojis. Once inside the brick-lined entranceway, the temperature rises with the geothermal heat. Diving gear lines the corridor. At the end, behind a drawn curtain, a stairwell drops into a rocky entrance where black waters wait in the gloom. Here, divers step into the warm water, their headlamps piercing through the darkness as they descend into a silent, shimmering world. Budapest is famous for its ornate bathhouses and spas, but its thermal waters have done more than soothe muscles and ease ailments. Over millennia, the same geothermal activity that feeds the city's baths has carved a network of more than 200 caves beneath its streets — as mineral-rich springs slowly dissolved the surrounding limestone, marlstone and karst rock. Molnár János is still alive and growing. Water rich in hydrogen sulfide and carbon dioxide continues to percolate through the rock, creating a mildly acidic cocktail that eats at the walls. The result is a Swiss cheese labyrinth of chambers and passages. 'It's very rare to have warm-water caves,' explains Csaba Gőcze, a dive guide with MJ Cave, the local operator offering guided cave dives. 'Usually, cave diving means 4 to 15 degrees Celsius (39 to 59 Fahrenheit) water. Here, it's 27 °C (80 °F) in the upper layers.' The warmth comes in distinct bands: 27 °C at the surface, dropping to 20 °C (68 °F) and then to 17–18 °C (62–64 °F) as colder water from the Buda Hills mingles below. Some of the cave's water still feeds the nearby Lukács Baths via an underground pipe — though the original inlet, by the stone steps that plunge into the water, was rerouted to give divers easier access. Molnár János surprises many first-time visitors. Unlike the tight, twisting passages of other caves, it offers spacious chambers and gentle currents. 'It's absolutely gorgeous,' Csaba says. 'Huge, open spaces and very few restrictions. It's a relatively easy dive — if you're properly trained.' That training is essential. Only certified cave divers are allowed in. The complete darkness and the fragile environment demand experience. The water is perfectly clear — until someone brushes the side of the cave or disturbs the soft bottom, sending fine silt particles billowing into the beam of a headlamp. 'You can usually see as far as your torchlight reaches,' Csaba says. 'But if people touch the walls or kick up the silt on the bottom of the passages, visibility drops to zero very fast.' To prevent this, divers follow a guideline strung a meter above the cave floor, ensuring the waters remain pristine. Their caution is rewarded with a tour of a surreal landscape: mineral-streaked walls studded with crystals, chambers shifting in color and texture from one to the next. 'Several places in the cave look completely different, as you have different colored rocks, areas with crystals, and areas without,' Csaba says. 'The best dives are where you go through several of these areas, so you experience it all.' Shrimp — nearly invisible — dart in the light. Fossilized seashells and sea urchins still cling to the walls, remnants of the Pannonian Sea, which millions of years ago covered much of modern-day Hungary. The cave still hasn't been fully explored. The officially mapped network runs 3.6 miles, but new passages are found regularly. Volunteer explorers make weekly expeditions into the caves to make measurements, lay new lines, and make updates to maps that have yet to be published. 'The official map says it's around 5,800 meters, but there are passages without lines,' Csaba explains. 'Some don't lead anywhere, but others might be part of something bigger.' He believes the cave could stretch to five miles. Researchers also collect water samples, monitoring for microplastics and signs of pollution. A 2022 study detected some contamination at the cave's known dripwater entry points, but the recently explored areas remain untouched and pristine. For certified cave divers, joining a dive here is remarkably straightforward. MJ Cave runs morning dives by reservation. After a briefing and gear setup, the first one-hour dive follows the main guideline, with optional deeper exploration afterward — some dives can reach nearly 200 feet (60 meters) and require decompression stops. Traveling to Hungary without equipment isn't a problem; full gear rental is available on-site.

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