See the world's longest glass-bottom bridge in China

Cleaning a glass bridge 4,000 feet in the air

Dangling 4,000 feet above the Grand Canyon, these cleaners risk it all to scrub a glass bridge. With a custom-built trolley and nerves of steel, they tackle one of the scariest jobs in America.

An architect ranks the best bridges in the world

Architext Ezra Groskin builds bridges and argues that the best bridges do more than allow traffic. They should, he believes, encourage human interaction and lingering to ultimately become a destination of their own. Explore ten stunning designs that connect communities, from New York to Switzerland.

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.

The massive sinkholes of China

Parts of China's limestone-rich terrain is fertile ground for massive caves, where some of the world's largest sinkholes are located. Hidden away in dense, lush forests, geologists are frequently discovering new sinkholes to explore. This piece...

The last Inca grass suspension bridge in Peru

High in the Peruvian Andes, the aging Q’eswachaka bridge sags precariously over the Apurímac River. It has been built and rebuilt continuously for five centuries. Read more about it here.

How the Golden Gate Bridge was constructed

San Francisco's Golden Gate Bridge is one of America's most iconic structures and is considered to be an engineering marvel. Built in 1930's, before the advent of modern construction technology, the structure was considered impossible by contemporary standards.

China makes 90% of the world's fireworks, with Liuyang as its production capital

Fireworks were invented in China, but their predecessor, the firecracker, was discovered in Liuyang upon burning bamboo. Pyrotechnics have since become part of the city's culture. Liuyang has won many international fireworks display competitions.

View a photo essay of renewable power landscapes in China

Using a drone, Chinese photographer Weimin Chu captured the deployment of solar and wind power installations across the country, which accounted for half of all global installations in 2025. The images show modern infrastructure juxtaposed with natural landscapes and was featured in an award-winning exhibition presented by Greenpeace in 2025.

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 world's largest restaurant is the size of 10 football fields

The Bawabet Dimashq Restaurant in Damascus, Syria, has held the Guinness World Record for largest restaurant since 2008. It can seat 6,014 guests and employs nearly 1,800 people, who serve up an eclectic menu of Middle Eastern Indian, Arab, Iranian, Syrian, and Chinese dishes.

As of 2025, the longest lightning bolt in the world spanned several states

Although the average bolt measures less than 16 kilometers (10 miles), the 2017 "megaflash" spanned 829 kilometers (515 miles) from eastern Texas to Missouri. Severe thunderstorms are common in the region, where warm, humid air from the Gulf collides with cool, dry air from the north, generating atmospheric instability.

Take a 3D underwater trip near the Great Barrier Reef

The Great Barrier Reef is the world's largest coral reef system, comprising more than 900 islands and almost 3,000 individual reefs. This video lets you tag along with divers as they explore the reef off the southern coast of Lady Elliot Island in full 3D (use the direction buttons in the upper left of the video, or your keypad).

Niagara's flow is changed artificially to accommodate tourists and power generation

The natural wonder is also the site of great engineering feats, from the Welland Dam that first allowed ships to travel from the upper lakes to the St. Lawrence Seaway, to one of the first hydroelectric dams.

The largest river on Earth is actually in the sky

High above the canopy of the Amazon rainforest drifts an airborne river fed by the towering trees below. The trees pull water from their roots into their trunks, pushing any excess water out of their leaves and into the atmosphere as vapor. Watch this six-minute video to learn how.

Marina Abramović took 3,500 photos of China while performing ‘The Lovers’

During the 90-day performance that took place on the Great Wall of China, Abramović lived in isolation, nearly fell into an abyss, and wrote poetry—among other transformative experiences.

The Channel Tunnel consists of an underwater network of over 200 kilometers in length

The passage beneath the English Channel between England and France includes three tunnels, crossover chambers, emergency passages, and air ducts. Burrowing teams in either country consistently checked their coordinates to ensure they would meet within two centimeters of each other.

The hand-dug 'Big Well' of Greensburg, Kansas

The fish doorbell letting people help spawning fish

Utrecht, a city in central Netherlands, has implemented an innovative "fish doorbell" system at a river lock to assist migrating fish during their spring journey to spawning areas. This unique setup allows online viewers to participate in helping fish navigate through the locks. An underwater camera is installed at the Weerdsluis lock, streaming live video to a dedicated website, where viewers may press a digital button when they see a fish.

The construction of LIGO needed to compensate for Earth's curvature

Across the 4-kilometer (2.5-mile) arms, the height of Earth's surface falls by almost a meter, preventing the lasers traveling within the arms from meeting the mirror at the end of each. Concrete slabs built beneath the arms help keep them level and provide structural support against seismic vibrations.

The containment apparatus at Chernobyl is the world's largest movable metal structure

Completed in 2016, the "New Safe Confinement" is a €1.5B megastructure—the largest movable structure ever built. It was assembled next to the damaged reactor, then rolled into place along a special track to seal the site for at least 100 years.

Angler catches nine-foot-long catfish

An Italian fishermen struggled for 43 minutes to reel in an over nine-foot catfish in the river Po, marking one of the largest such catches in history.

In late 2007, Wikipedia became the world's largest general encyclopedia

The record had been held for approximately six centuries by the Yongle Encyclopedia, which was commissioned by the Yongle Emperor of the Ming dynasty in 1403 to preserve information from ancient and imperial China. The text comprised 22,937 manuscript rolls in 11,095 volumes.

Hear Ray Dalio talk about the growth of the Chinese economy

Dalio was an early advocate of US investment in China. While he has previously criticized the authoritarian regime, his criticism of the government has been labeled mild relative to his praise for economic growth and innovation—critics argue that he has minimized human rights violations in the country.

The oddest shots captured on Google Street View

Ever wondered what you could see on Google Street View if you looked hard enough? With this delightful site, you can now explore the weird and wonderful things captured since the service debuted in 2007.

Spy balloons. UFOs. What else is up there?

The appearance and downing of a Chinese surveillance balloon brought the concept of high-altitude floating aircraft into the public consciousness. While sparking a diplomatic row, it also revealed how many objects—nefarious or benign—are...

Saudi Arabia eyes a 75-mile-long skyscraper

The Mirror Line will consist of two mirrored buildings, crossing mountain and desert terrain. It’s part of a development called Neom, which will be roughly the same size as Massachusetts.

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

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.

In 1963, a basement renovation in Turkey revealed a passageway to a hidden, multilevel underground city that once housed as many as 20,000 people

Explore the history, structure, and species of Australia's Great Barrier Reef with this interactive journey narrated by Sir David Attenborough.

In 1915, workers recovered a submarine-like vessel from the Chicago River, prompting fears of German espionage

Legendary architect Frank Lloyd Wright designed the SC Johnson headquarters in Wisconsin, aiming to make a cathedral-like workplace

Electrical grids worldwide must double their power delivery capacity by 2050 to meet surging demand from AI and electric vehicles.

Artificial coral reefs have been 3D printed from nontoxic, biodegradable terracotta clay, which coral polyps have used as a foundation for rebuilding marine ecosystems.

This real-time tracking of the hantavirus cruise ship outbreak in May 2026 offers a unique glimpse into the global reach of the outbreak and whether the virus sickened passengers and their communities around the world.

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

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.

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

The US Constitution is widely regarded as the longest-standing written national constitution still in force—see how it has influenced rights worldwide.

The first image of a black hole was captured by creating an Earth-sized virtual observatory from a network of eight radio telescopes.

The identity of the Tank Man in the iconic photo from the 1989 Tiananmen Square protests remains unknown and was possibly killed.

See how fireworks are made and learn how metals like magnesium and copper are responsible for different colors.

How the most famous Ebola book, The Hot Zone, which sold 3.5 million copies and was translated into 30 languages, got aspects of the disease so wrong.

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.

See how Budweiser's famous Clydesdales spend their days at Warm Springs Ranch, where roughly 70 to 80 of the beer brand's giant horses can be found at any given time.

A Yale student wrote a profound essay about the consulting industry's influence on elite college students that was published in a book of her writing after she died in a post-graduation car accident.

Explore chaos in this simulation of two double pendulums, where small differences in the release angles produce wildly different outcomes.

Fear or disgust related to clusters of holes and cracks, called trypophobia, may stem from evolutionary processes to help us avoid pathogens.

The boiling temperature of water decreases with increasing elevation because the molecules need less energy to overcome the lower atmospheric pressure associated with thinner air.

Planarian flatworms are small, aquatic worms with exceptional regenerative capabilities. When cut, the worms can regenerate multiple bodies in a matter of weeks.