20 of the world's most iconic big rock wall climbs

The most challenging marathons in the world

Even on a flat course, the event is a taxing ordeal. Now imagine those 26.2 miles climbing some of the world’s highest mountains (via the Tenzing Hillary Everest Marathon or the Kilimanjaro Trail Marathon), across the Great Wall of China, or trekking up the Inca Trail. These races won’t earn you a PR, but they will make for good stories.

Before Alex Honnold completed his free solo climb of Taipei 101, 'French Spider-Man' scaled the building

Alain Robert completed his climb of the massive skyscraper in 2004, 22 years before Honnold. The crucial difference, though, was that Robert used safety ropes for his ascent. Honnold, on the other hand, completed it "free solo," meaning he climbed the building without any equipment beyond some shoes and a pouch of chalk for his hands.

Indoor rock climbing gyms have doubled in a decade in the US

The business saw a jump in growth amid low real estate costs after the 2008 Great Recession. The sport's culture has shifted from serving misfit loners to more family-friendly spots.

Driving the 99 bends up China's Tianmen Mountain Big Gate

A huge rock gate sits atop a mountain in China's northwestern province of Hunan, where visitors climb 999 stairs to crest the natural wonder. For years, tourists used a cable car to reach the top, but a thrilling, curvy road was built in recent decades to allow for better access—and has become an attraction in itself.

A look at how fish less than two inches long climb up 50-foot waterfalls

Shellears use tiny hooks on their front pectoral fins to grip rock like Velcro and take many pauses to recover energy between bursts of movement. Their pectoral girdle—an arch of bone—supports the muscle system needed for the roughly ten-hour climb.

The 15 most beautiful caves in the United States

The United States is home to more than 45,000 caves, including many with National Parks designation, like Wind Cave (in South Dakota) and Carlsbad Caverns (in New Mexico). This list of the 15 best isn't just for spelunkers—all of these sites are available for more typical tourists, so long as they have a good pair of shoes.

Teen climber survives a 500-foot fall on Mount Hood

The Clackamas County Sheriff’s Office said rescue teams are working to reach the teen, who sustained a leg injury in the fall. He is at an elevation of about 10,500 feet.

51 must-see attractions in Barcelona

Planning a trip to Barcelona? Check out this comprehensive list of the city’s most iconic sites. It’s organized from most well-known to least, so if you’re pressed for time, the authors recommend concentrating on the top of the list.

The best album covers of all time

Rock 'n' roll has defined the style of several generations, and much of that is the result of iconic album covers. This Billboard list breaks down the best of the best, ranking generation-defining images from Pink Floyd, Cyndi Lauper, Nirvana, and more.

Five unforgettable World Cup moments

Great things happen on the biggest sporting stage the world has to offer. Check out five of the most amazing moments from the last twenty years of World Cup soccer.

Fallingwater is one of the world’s most famous houses

Fallingwater, a country house set atop a waterfall, is arguably Frank Lloyd Wright’s most celebrated work. Legend has it that the initial drawings of the house were hurriedly sketched in just three hours after Wright’s client surprised him with a phone call and announced he wanted to see the plan’s progress.

What makes the world's biggest waves?

Some of the world’s biggest waves, routinely reaching 100 feet high, are formed near the town of Nazaré, Portugal. But what makes this area so prone to massive swells? While a number of factors are involved, the key feature is the Nazaré Canyon,...

For centuries, Niagara Falls has been a magnet for daredevils seeking to conquer one of nature's most powerful wonders, with its 200-foot drop and water rushing at 32 feet per second with 280 tons of force.

The 25 most important stunt scenes of the 21st Century

The Academy Awards will finally recognize stunt design at its 2028 ceremony, leading one writer to gather the best stunt sequences from the century, highlighting jaw-dropping scenes from "Crouching Tiger, Hidden Dragon," "The Matrix," and more.

Black Rock City is a remarkable portable town

While Burning Man hosts many impressive and unique architectural feats, these buildings also have notable issues of safety, accessibility, and reliability.

The top 100 companies in Silicon Valley

Silicon Valley has pumped out some of the biggest companies in the world, including Apple, Meta, and Google. Thousands of companies operate in the area, ranging from valuations in the trillions to startups only worth thousands.

Niagara Falls flows over 400-million-year-old layered rock

The falls cut through distinct layers of ancient rock: a hard cap of Lockport Dolomite sits atop softer layers of Rochester and Queenston Shale. This structure allows the falls to maintain a steep vertical drop as erosion undercuts the caprock.

Touching Howard’s Rock is Clemson football’s iconic pregame ritual

Since the 1960s, Clemson players have rubbed Howard’s Rock—a rock that was gifted to Clemson by Death Valley, California—before running down the Hill into Memorial Stadium.

Sacsayhuaman, the Inca's largest structure

Less well-known but arguably more impressive than Machu Picchu is Sacsayhuamán, a 15th-century fortress-temple on the outskirts of Cusco. The site also features huge stones—some weighing more than 100 tons—carved into interlocking blocks and joined together through mortarless masonry. Archaeologists estimate it must’ve taken some 20,000 laborers to complete construction. This video offers a clickable 3D virtual-reality tour of the site.

A 101 on the 'Death Cap,' the world's deadliest mushroom

The Death Cap, also known as amanita phalloides, is the most fatal mushroom on the planet, responsible for roughly 90% of the world's mushroom deaths per year. Ingestion of the mushroom wreaks havoc on the liver and kidneys, frequently leading to...

Coachella is one of the largest music festivals in the world

Coachella is one of the largest music festivals in the US, though it almost didn't make it past its tumultuous first year. This overview explores how that show inspired the first Coachella in 1999, its early setbacks, and how it grew into a cultural mainstay.

View the 10 largest earthquakes ever recorded as of 2024

In 1960, a magnitude 9.5 earthquake in Chile became the largest in recorded history, leaving about 2 million people homeless. Two of the largest occurred in back-to-back years in Alaska, with 9.2 and 8.7 quakes each generating tsunamis.

Waves off the coast of Nazaré, Portugal, can reach over 100 feet and are caused by the area's deep underwater canyon geography

How melting ice impacts the whole world

Melting glaciers and ice caps are far from where most people live, but their impact can be felt across the planet. Visit four places—the American West, a Himalayan valley, the northern Atlantic, and Texas—with this immersive interactive to see the various impacts of melting ice around the world.

Shaun White is among the most decorated X Games athletes

Competing in both snowboarding and skateboarding, Shaun White has won 15 X Games gold medals—10 in snowboard superpipe—making him one of the most successful and versatile athletes in the event’s history.

A timeline of Wall Street's history

Wall Street's historical timeline starts with Wall Street getting its name in the 1600s and ends with details about the Occupy Wall Street movement in 2011.

See photos of Meteora, a mountainous site in central Greece, home to 14th-century monasteries perched atop soaring outcroppings.

Explosive volcanic eruptions happen when magma pressure overcomes rock strength

Magma usually stays underground because of a balance between its upward pressure, the weight of the Earth’s crust above, and the crust’s rock strength. Landslides can reduce crust weight, while built-up gas pressure can strengthen magmastatic pressure.

Double world record holder Hunter Ewen helped conquer his fear of balloons, called globophobia, by training to win Guinness World Record titles for balloon inflation.

70 years ago today, city officials in Santa Cruz, California, banned rock 'n' roll to protect its youth from corruption after witnessing a 'provocative' concert the night before.

Volcanoes 'die' when their supply of magma runs out, if they are shifted away from their underlying magma reservoir, or if they get clogged by collapsing or their magma cooling back into rock.

The Nasdaq's 'Magnificent 7' companies are responsible for roughly 40% of the Nasdaq 100 index's gains, while the remaining 93 companies account for the other 60%.

A 2019 Facebook event called on attendees to "Storm Area 51, They Can't Stop All of Us," resulting in countless memes, the creation of a music festival, and eventually the arrests of those who did try to approach the area.

Explore a list of the 100 best novels of all time, compiled by some of the world's best living writers, including Salman Rushdie, Stephen King, and Jennifer Egan.

See 33 images that became central to huge scandals, including a young Charles and Camilla, Michael Jackson's baby on a hotel balcony, and Hugh Grant's mugshot.

View the ten deadliest tornadoes in US history.

'Grand Canyon of the Yellowstone,' a work by American painter Thomas Moran, inspired Congress to establish Yellowstone National Park.

Frank Lloyd Wright's houses are historically hard to sell because they're old, subject to local landmark commissions, and often unfashionable

Take a 3D tour of the Hajj, Islam's annual pilgrimage to Mecca, undertaken by over 1.5 million Muslims.

Graffiti dates back to at least ancient Pompeii, where citizens scrawled messages to one another on public walls

Explore our favorite visualization of the immense scale of space, from an astronaut to the size of the observable universe

Brandi Chastain, the star of the 1999 US victory over China in the 1999 Women's World Cup, was a last-second choice to take the penalty kick that sealed the victory.

A small portion of The Winstons' 'Amen, Brother,' an obscure '60s gospel record, is the basis for thousands of hip-hop tracks, making it one of the most sampled records ever that's informally known as 'the Amen break.'

Lesser-known phobias include turophobia, or the fear of cheese, and nomophobia, the fear of being without your cell phone.

Venture capital is a form of funding provided to early-stage companies with high growth potential, typically in exchange for an equity (or ownership) stake

This poison ivy knowledge quiz—accompanied by photos of the plant's varied forms—may help you identify this common rash-inducing growth.

NBA superstar Victor Wembanyama spent the 2025 summer training with monks in central China to enhance his body and mind.

Power lines are dotted with large, brightly colored balls to improve the visibility of these thin wires to helicopters and small planes and help prevent potential crashes.

Fast-casual restaurant Chili's is experiencing a resurgence, with its parent company recently reporting a nearly 32% increase in sales, thanks to passionate Gen Z fans on TikTok.

The American Society of Civil Engineers' infrastructure report card gave the US a C in 2025, its highest grade since the project launched in 1998.