A 200-year-old bar in the historic French Quarter refuses to give up its place in history, nor its role in securing ours.

A theme park that suffered massive flooding during Katrina was abandoned, and now proves irresistible to trespassing explorers.

The central mosque of this Mali town is entirely built from mud.

Buddha and Jesus tower over this French mountainside headquarters of the Aumism religious cult.

An enormous dragon scales the walls of this 17-story temple.

This Vietnamese hell cave lets visitors take a walk through a devilish underworld full of demons.

This experimental utopian "city of the future" in rural India may hold a dark secret.

An abandoned gun-funded 19th century utopia.

Planned as the world’s first zero-carbon city, it had lofty ideals—but is only 5 percent completed and aiming for 50 percent carbon-neutral.

Former utopian colony based on the belief that the universe exists in a hollow sphere.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

A Hawaiian stairway to heaven—that you can't climb.

Yemen's "Stone Palace" looks like it was carved right out of the tall stone column on which it is built.

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

Race through the maze, get your name on the sign.

A Victorian Gothic masterpiece housing a world-class collection of rare books and manuscripts.

The 10,000 Torii shrine.

An ancient capital city that dates back 3,000 years old and harbors many surprises.

An exquisite tunnel of cascading flowers.

An obscure waterfall that looks like something out of a fantasy novel.

Pitié-Salpêtrière was the dumping grounds for women who received the dreaded diagnosis of "hysterical."

The vast, legendary catacombs hold secrets much stranger than stacked bones.

The remains of diamond fever taken over by the desert.

A look into the Church of Scientology's deeply unfavorable view of psychiatry.