Roman ruins top white travertine terraces formed by ancient hot springs.

For those with no fear of heights: a skywalk 4,700 feet up on a Chinese mountain.

The latest in a series of long glass bridges suspended at terrifying heights.

This vertical pinnacle in China was the inspiration for the floating mountains in the movie “Avatar.”

A faux desert landscape in the middle of the jungle that sprouts oases during the rainy season.

An alien landscape of chalk-rock in the Egyptian desert.

Tubing through a cave lit with glowworms is a magical underground experience.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

A beautiful geyser under environmental threat.

Along this wire fence, travelers have been leaving a particular memento since 2012.

This fantastical waterfall is hidden in a cave located in a cracked cliff.

Icelandic folklore says this giant boulder was ripped from the mountains and placed at its current location, where it became home to elves.

The oldest (maybe) swimming pool in Iceland is a stunning oasis built into the side of a lush hill.

Internet rumors, often involving Icelandic singer Bjork, have abounded regarding this isolated outcrop of rock.

Sample cuisine inspired by the Great Plains indigenous people who have been gathering at this sacred Canadian Heritage Park for 6,000 years.

A museum cafe showcases Native American dishes and indigenous ingredients from across the Western Hemisphere.

This restaurant features Native American foods from across the country.

This café is dedicated to serving coffee roasted by Native American-owned companies.

This Haudenosaunee restaurant is a delicious tribute to indigenous cuisine.

Founded by members of the Tohono O’odham Nation, this one-room joint's James Beard–winning fry bread is light as a cloud.

The largest lake in the Faroe Islands seems to be held hundreds of feet above sea level thanks to an optical illusion.

Dozens of tiny doors dot Newport's Mansion Hill neighborhood.

This beautiful fountain was sculpted by a female artist who was ahead of her time.

This sacred fig tree with a link to the Buddha is one of the oldest human-planted trees in the world.