Considered the “guardians of the Grand Canyon,” the Havasupai are just one of 11 Native American tribes associated with Grand Canyon National Park and the only tribe still living within the rim’s walls. The land is considered sacred to the Havasupai, and they live there to protect and respect it.

Running through Morocco’s Central Atlas Mountains and carved by the Dadès River are the orange limestone cliffs of the Dadès Gorges, a series of canyons that rise up to 1,600 feet from the desert floor. On the romantically named Road of a Thousand Kasbahs, dramatic switchbacks through the canyons make for one of the most scenic stretches of road found anywhere in the world.

During the spring and fall, Alabama's Dismals Canyon sometimes appears to be filled with glowing stars. But the blue-green sparkles are actually bioluminescent larvae of the North American Orfelia fultoni, a species of fly. The insects are cousins of the carnivorous fungus gnats that light up the spectacular glowworm caves of New Zealand.

Cutting through the wild White Mountains of Crete (Greece’s largest island) and ending at the shores of the Libyan Sea, Samariá Gorge is one of Europe’s largest canyons. A UNESCO World Biosphere Reserve, it is also the only national park on the island of Crete. The canyon is home to the rare and endemic wild Cretan goats, known as kri-kri.

China sports two of the world’s highest bungee jumps, but the newest jump off of the Zhangjiajie Grand Canyon Glass Bridge takes the top prize. At 853 feet above the ground, the jump is 89 feet higher than the previous world record-holding Macau Tower. Visitors also have the opportunity to tour the canyon’s stunning natural landscapes by hiking a wooden path built along the canyon’s stream.

With depths as deep as 11,150 feet, Colca Canyon in Peru stretches around 60 miles among the High Andes. In trekking the canyon, visitors are likely to spot some of the canyon's varied wildlife — most notably, the Andean condor.

Want to visit Africa’s deepest and most stunning canyon? Drop by Namibia, home to the largest canyon in Africa — Fish River Canyon. At 100 miles long, nearly 17 miles wide in some places, and almost 2,000 feet deep, the enormous ravine cuts into a dry and stony plateau.

Named for the local population of bighorn sheep, Bighorn Canyon is located between the Bighorn and Pryor mountain ranges on the border of Montana and Wyoming. The dramatic canyon was carved by the Bighorn River, and construction of the Yellowtail Dam in the 1960s led to the creation of Bighorn Lake. The dam was named for Robert Yellowtail, chairman of the Crow Tribe.

At over a mile long and 300 feet deep, the fjord-filled Fjaðrárgljúfur canyon is one of Iceland’s many natural wonders. With steep, jagged, and often narrow walls, the roughly 2 million-year-old bedrock of the canyon is carved by the Fjaðrá river, which runs from Geirlandshraun mountain into the Skaftá river. The flow of Fjaðrá is so low that hikers can walk the canyon, only wading during some portions of their journey.

Near the city of Shangri-La, the Jinsha River (a tributary of the upper Yangtze) has carved a misty and mystical canyon called Tiger Leaping Gorge that separates the 18,360-foot Jade Dragon Snow Mountain and the 17,703-foot Haba Snow Mountain. The gorge’s cliffs stretch more than 12,000 feet deep, and trekkers often brave landslides and heavy rains on both the upper and lower trails.

The Yarlung Tsangpo Grand Canyon is so remote and difficult to access that few know it’s the deepest canyon in the world. Tucked into the Himalayas on the Tibetan Plateau, the canyon drops some 19,000 feet at its deepest point — more than three times the depth of the Grand Canyon’s deepest point.

The Monterey Bay National Marine Sanctuary off the coast of California is home to Monterey Canyon, an underwater canyon that's almost a mile and a half deep, rivaling the Grand Canyon, which is 1.1 miles deep. The deepest part of Monterey Canyon is the Davidson Seamount, which has a base 4,000 feet below the water's surface.

At more than 16 miles long and 2,624 feet deep, Blyde River Canyon is one of South Africa’s most spectacular natural wonders. Located in the eastern province of Mpumalanga and also known as the Motlatse Canyon, the Blyde River Canyon could be classified as the largest “green canyon” in the world, with its lush green subtropical foliage setting it apart from the other largest canyons on the planet.

If you’re claustrophobic, skip “the Narrows” in Zion National Park. This area’s nickname is well-earned. Beginning near the Temple of Sinawava, the canyon’s path narrows tightly to a mere 20 feet wide, while the canyon’s vertical rise reaches 2,000 feet. These red slot canyons were formed by water rushing between the rock, creating narrow, uniquely shaped paths.

In the Sierra Madre Occidental mountains of northern Mexico, the state of Chihuahua boasts a system of six massive but distinct canyons, which collectively dwarf Arizona’s Grand Canyon. Together referred to as Copper Canyon, they were formed by six rivers that flow into the Rio Fuerte on its journey to the Gulf of California, and take their name from the coppery green shade of their steep walls.

They say everything is bigger in Texas, but the “Grand Canyon of Texas” is slightly smaller than the famous Arizona canyon it’s nicknamed for. Located in Palo Duro Canyon State Park, Palo Duro Canyon is the second largest canyon in the country, at 120 miles long and six miles wide on average. It's best known for its multicolored rock layers, mesas, caves, and hoodoos.

Hoodoos exist around the world, but nowhere in such abundance as in southern Utah’s Bryce Canyon. The bumpy, blush-colored pillars were formed over millennia as water, ice, and gravity carved out the canyon’s soft rock. Hoodoos contain different types of rock with varying levels of resistance to erosion, leading to particularly unique clefts and ridges.

Located in the Provence region, France’s largest canyon (and by some accounts, the largest in Europe) carves through 15 miles of white limestone in the Alpine foothills. The walls of the Verdon Gorge rise almost half a mile high above the blue-green waters of the Verdon River, and the narrow, twisting roads around the rim of the gorge are lined with small scenic villages.

Located on the island of Kauai, Waimea Canyon has been dubbed the "Grand Canyon of the Pacific." At 14 miles long, a mile wide, and over 3,500 feet deep, Waimea is a bit smaller than the actual Grand Canyon, but much more vibrant. The canyon's colorful blend of red, green, and brown hues are perfectly accented by waterfalls and occasional rainbows.

The Grand Canyon is one of the most revered sites in the United States — and the Colorado River deserves a lot of the credit. Stemming from the Rocky Mountains, this river has carved its serpentine path through the gargantuan canyon for thousands of years. Today, you can still hike from the canyon’s rim all the way down to the river.