Come for the pizza, stay for a performance on the world's largest theater pipe organ.

An open-air, roadside eatery celebrating a historic indigenous cuisine of complicated significance.

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

The massive, incredibly rare instrument is over 11 feet tall with a range so deep it goes lower than humans can hear.

This sinkhole in the Arizona desert is filled with carbonated, arsenic-rich water

Once disputed as the largest sundial in the world.

A once popular resort—said to be the vacation spot of gangster Al Capone—now remains abandoned in the woods of Arizona.

In 1975, a forestry worker in Arizona claimed to have been abducted by a UFO.

This 40-room dwelling tucked within a cliff was built by the basin's prehistoric residents.

The largest natural travertine bridge in the world is nestled in a small canyon in central Arizona.

A mud volcano in Indonesia spews out 50,000 cubic meters of mud every day.

Think you have a tough job? Try carrying 200 kilos through a cloud of sulfur down the side of a volcano.

This Singaporean food-court stall was home to the world's cheapest Michelin-starred meal.

A manifestation of modernist architectural ideas, this massive, multi-purpose building was one of the first of its kind in Southeast Asia.

This statue once earned the distinction as one of the "Three Major Disappointments of the World."

A quiet patch of astroturf laid out between a building that seems to be splitting in half.

An Antoni Gaudí masterpiece in Astorga.

This statue of an eagle taking flight welcomes visitors to Langkawi.

This dangerous-looking suspension bridge may have been too unstable to remain open.

Next to the Malaysian Prime Minister’s office stands this rose-colored mosque.

Holy Hindu shrine in an enormous, monkey-filled limestone cavern.

Cartoon clouds and nature-inspired murals have transformed the streets of Kuala Lumpur.

One of the world's tallest flagpoles.

An exploration of Malaysian heritage through the lens of traditional textiles.