The famed architect designed this Minnesota gas station of the future with a lookout tower.

A historical convent known for taking in bad luck babies left on its doorstep is now an upscale shopping center.

The most playful of the life-sized statues that make up Singapore's "People of the River."

Artifacts and memories from the Vietnam war, located in a place that experienced it first hand.

A nightmare for the claustrophobic lies hidden in Southeast Asia.

A battle between nature and architecture in the Cambodian jungle.

Believed to have once stored either human remains or rice wine, thousands of mysterious stone jars lie in ruin.

A walk through the historic city center, under the streets of Seattle.

A museum dedicated to the history and exploration of both popular music and science fiction.

A giant Troll lurks under one of Seattle's oldest bridges.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

I-95's Tijuana-style celebration of kitsch at the Carolina border.

This famous city eluded concrete detection until the early 2000's.

A marvel of Byzantine engineering under the streets of Istanbul.

The small cliffside monastery known as the Tiger's Nest is said to be the meditation site of an eighth-century Buddhist master.

This Himalayan airport provides one of the most difficult landings in the world.

Numerical symbolism abound at East Asia's oldest observatory.

Secret North Korean passage discovered below the world's most dangerous border.

A place to eat for on-the-run agents and espionage enthusiasts.

Odd outsider art installations surround a Gold Rush-era ghost town.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

America's Most Wanted's set resides in this tribute to the history of crime and punishment.

A condom-covered Thai restaurant that is more concerned with birth control than food.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.