The beehive-like buildings of this abandoned resort reside near the border of Mauritania and Senegal.

The only thing sweeter than the potatoes is the canine proprietor of this roadside stall.

This unusual lava tube spouts seawater during high surf.

A once-glowing grotto at the bottom of Waikapalae Wet Cave.

On the outskirts of a desert trading village high on the Andean plain, steel giants have been destroyed by salt winds.

Siberian husky that delivered a life-saving antitoxin.

Nature took her revenge on the "Wickedest City in the World."

The only diamond mine in the world where you can keep what you find.

A measuring mishap led to these artificial stone ladies losing their stomachs.

This mesmerizing medieval monastery-cave complex sits thousands of feet above ground overlooking a valley.

A small side chapel in Santa Fe's basilica is home to the oldest statute of the Virgin Mary in North America.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

A New Hampshire grave with a grudge.

An abandoned railroad tunnel is now filled with bioluminescent bugs.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

One of the earliest depictions of an Arthurian scene that is shrouded in mystery.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

Dive for drinks at Croatia's first and only underwater winery.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

The “Sistine Chapel” of the Middle Ages merges 11th-century science and religion in wondrous hues.

This domed temple was built in a hidden cave mouth as a refuge for sinners seeking absolution.

Exceptional Nepalese food can be found in a Texas gas station.

This hidden 13th-century tavern room has a few Shakespearean connections.