The 52-mile marvel of engineering inside Glacier National Park

Ansel Adams' photographs captured the majesty of a growing National Park System

The famed American photographer was an ardent conservationist and believed deeply in the promise of the national parks. His photos sought to capture the feeling of seeing the parks' mountains, lakes, and vistas firsthand. Below is one example, taken at Lake McDonald in Glacier National Park.

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

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.

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.

Explore landforms that exist across America's national parks

Landforms are not just scenic vistas; they are geological storytellers that shape ecosystems, climates, and our understanding of Earth's history. In this comprehensive look at landforms from the National Park Service, you will learn not only about different types of American landforms, but you will understand how these geological features are shaped by various forces, how they reveal an area's geological history, and how they influence climate and ecology.

People spent more than a billion hours visiting national park sites in 2025

Overall, the National Park Service reported 323 million visits for the calendar year, with 26 parks reporting record years. Here's how that broke down by type of site:

Explore Lewis and Clark’s 8,000-mile journey in Google Earth

Follow the Corps of Discovery’s full route from St. Louis to the Pacific and back on Google Earth. Explore key camps, Native encounters, and natural landmarks through satellite imagery and on-the-ground photos.

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 hidden hallway behind Mount Rushmore and why it’s unfinished

Mount Rushmore was designed to be more than a massive monument to US presidents, and its ambitious plans were part of the reason why. This fascinating video explores its backstory, creation, and the hidden tunnel behind President Lincoln's head.

A strike-slip fault and glaciers created Scotland's unusually straight Great Glen

In satellite images, Scotland's highlands present an unusually straight line in the landscape to viewers. This line occurs along a fault where two plates move against each other horizontally. Amid recent ice ages, receding glaciers deepened this fault.

The 'Sign Post Forest' in Canada's Yukon collects roadsigns from across the globe

The unique roadside attraction is a common stop for those traveling along the Alaska Highway, allowing visitors to browse over 100,000 signs. The collection is believed to have been started in 1942 by a homesick American soldier.

Engineering the Overseas Highway connecting the Florida Keys

A 113-mile series of bridges called the Overseas Highway connects Key West—the southernmost point of the United States—to mainland Florida. The route originally served as a railroad but has required regular reconstruction due to major storms. This video traces the history of the project in fascinating detail.

During glacier surging, these bodies of ice can move over half a football field a day

The movement of these glaciers, which repeatedly speed up and advance for months or years after stalling or moving backward for a time, results from melting ice that reduces friction between them and the ground, allowing them to slide more quickly. Scientists note that this effect is becoming more frequent due to climate change.

What was the Great Inca Road?

In little more than 100 years, it grew from a small kingdom in the highlands of Peru to become the largest empire in the Americas. Read about the critical role played by the Great Inca Road.

A primer on reading the rock layers of roadcuts

Road construction often requires cutting through layers of rocks, coincidentally exposing millions of years of rock formation. This simple guide introduces basic rock types, what causes curves and folds, and the major rock formations in regions around the US.

The Geysers is the largest geothermal power complex in the world

Despite the Mayacamas Mountains area north of San Francisco lacking geysers, the name given by a grizzly bear hunter stuck after the construction of The Geysers Resort Hotel to accommodate tourists. Natural steam vents in the region are funneled into more than 12 geothermal plants, each capable of powering about 40,000 homes.

Journey through Norway’s frozen frontier

This 44-minute video takes viewers through the Arctic landscapes of Norway, as they learn about the area’s life and challenges. Viewers can observe the wildlife that thrives in this harsh setting—from reindeer and polar bears to red foxes. They...

This Milky Way photo took 12 years to shoot

Finnish astrophotographer J-P Metsavainio has released a Milky Way photo that took him nearly 12 years to create. The 1.7-gigapixel image has a cumulative

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 complex science of snow removal

Plowing snow seems simple, but its actually a technically complex task and requires significant logistics, patience, and funding. New York City's 19,000 miles of roads require days to plow at a cost of $12M per inch of fallen snow, and roughly 17 million tons of salt were applied to road surfaces across the US in a recent year. Dive into the details of snow removal with an in-depth and funny video.

Fly through the Valles Marineris, the largest canyon in the solar system

Stretching farther than the width of the continental US and with depths as much as four times those of the Grand Canyon, the Valles Marineris is believed to have formed when Mars’s crust tore open during intense volcanism in the planet’s past.

One roadside attraction invented modern mini-golf

Garnet Carter and his wife Frieda owned and operated Fairyland, a roadside attraction on Lookout Mountain in Georgia. While other mini-golf courses tried to mimic the regal courses of its parent game, the Carters built obstacles and decorations from items they had around Fairyland, effectively inventing the leisure-minded version of the game.

Visualizing the built world compared to the natural world

In the last century, humans have covered the Earth in 1,300 metric gigatons of built material, known as technomass. That amount is more than the Earth's entire biomass at 1,100 GT, which includes all living organisms. To get a sense of the scale of this comparison, click through this striking, simple visualization showcasing the various organisms comprising biomass as well as the materials making up the technomass.

The Airstream surged in a postwar road trip boom

Wally Byam invented the Airstream in the late 1920s, but it took off following World War II, when more affordable automobiles allowed families to venture out into an expanding network of state and national parks. Airstream enthusiasts sometimes traveled in caravans, camping in front of famous scenery, like the Pyramids at Giza.

The traffic lines leaving Burning Man

The traffic lines leaving Burning Man have become an annual gawking event among the press, as the festival known for its radical "leave no trace" principles nonetheless contributes its share of carbon emissions. See photos of the dramatic departure from the desert playa here.

Explore the wineries of the Napa Valley

Plan your own Napa tour with this interactive map of the hundreds of wineries, vineyards, and tasting rooms in the valley. You can sort by a variety of different factors, including whether or not the location requires reservations, types of wine available, and even dog-friendliness. Once you’ve selected your stops, the site can also optimize your route so you spend less time in the car and more time at the wineries.

Why one city in Minnesota isn't on Google Maps

North Oaks, Minnesota, is a city of a little over 5,000 people that spans just nine square miles. It's also the wealthiest place in the state, which is part of the reason it's been able to stay undocumented by Google. In this short documentary, one man attempts to film it himself.

Stanford built a Google Maps for the Roman Empire, revealing how much it cost to travel in the ancient world

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

See the 25 of the best photos of auroras from around the world.

The Great Salt Lake's distinct dual coloration results from high-salinity organisms that only live in the northern portion and produce a purple protein.

Hear about the 250-year history of the United States Postal Service, complete with some of its strangest deliveries, important innovations, and the figures that made it an American institution.

After NASA's Voyager 1 captured Earth as a single pixel as it left the solar system in 1990, astronomer Carl Sagan used the image to reflect on humanity's fragility and the responsibility to protect 'the only world we've ever known.'

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

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.

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

Explore an interactive map built from more than 100,000 survey responses on where people find joy in their lives

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

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.

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.

Discover the catastrophic consequences of a failure of the US electrical grid—something that is more likely than many Americans think.

In 1984, Operation Smash Hit intentionally crashed a 239-ton train into a nuclear waste canister at 100 miles per hour to prove the canister's safety, which remained completely intact and lost just 0.29 of its 100 pounds of pressure.

The price of gas is a composite made up of several different factors, with the federal gas tax making up less than 20% of what drivers pay at the pump.

When you complete a CAPTCHA on a website to prove you are human, you may be unknowingly training algorithms for self-driving cars, whose systems require training data to help identify crosswalks, bicycles, and other outdoor objects.

One of the most famous portraits ever taken is 'Afghan Girl' (1984) by Steve McCurry, yet the subject Sharbat Gula went much of her life without being identified or benefitting from the image's success.

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.

Gerrymandering works through two techniques: cracking opposing voters across districts to dilute their power, and packing them into a few to waste their votes in lopsided majorities.

In 1939, baseball star Lou Gehrig delivered his inspirational 'Luckiest Man' speech after retiring due to the health condition that now bears his name.

In 1945, Surrealist artist Salvador Dalí and legendary animator Walt Disney began collaborating on a short film that was not completed until 2003, years after both men had died.

Bone marrow (soft tissue found inside certain bones) generates roughly 500 billion new blood cells each day