A clear blue swimming hole with hidden caves, still unexplored.

A popular swimming hole that hides one of America's most deadly diving spots.

Over 2,000 ancient temples dot the Myanmar landscape at the site of this famed archaeological site.

The remains of 40,000 humans, meticulously stacked in a tiny churchyard shed.

Nondescript elevator doors open to reveal a stunning, surreal world.

The first archaeological site discovered by aerial photography.

A huge musical instrument played by the ocean.

This Budapest bar allows drinkers to leave their mark on the walls, floor, and even ceiling.

Millions of dollars worth of sculpture decorate this Iowa city center.

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

What was once a unique system of urban elevators is turning into a mechanical ruin.

The Hudson River School comes alive at this palatial estate.

Uh, pardon me, ma'am, but I couldn't help noticing that there's a Columbo statue in the middle of Budapest.

This insurance company building reminds customers that witches, bears, and gnomes are out there, best be insured.

This massive, ancient stone was disassembled and then put back together again.

This expansive bridge in the Canadian wilderness was originally just built for friends.

The Vatican's secret porn-festooned bathroom was painted in erotic murals by one of the greatest artists of the Renaissance.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

Luxurious devotion and 500,000 images of Buddha in Myanmar.

France's national museum of scientific and industrial instruments.

This large round boulder is said to emit spiritual power, but it may just be magnets.

This museum celebrating the almighty dollar lets visitors literally stand in the shadow of a million bucks.

Museum celebrating the history of computers, especially their role in codebreaking.

A minotaur, a labyrinth, and a dubious restoration pull in visitors from around the world.