More sculpture than building, this architecturally significant temple was built on the spot of Saint Peter's crucifixion.

This giant trout was made by a singular fisherman who wanted to honor his local trade.

Historic home of America's sweetheart sharpshooter, Annie Oakley.

The world's oldest surviving music hall was also once a freakshow.

A ruined mansion hidden in the woods of the Hudson Valley, home of a tragically doomed romance.

A man-made island designed to look like a massive battleship.

One of the smallest towns in the United States.

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.

Erotic art covers the walls of the largest ancient pleasure palace.

Home of Jake the Alligator Man, the mummified remains of a cigar smoking, cross-dressing celebrity of the Northwestern coast.

For those with no fear of heights: a skywalk 4,700 feet up on a Chinese mountain.

The Cimetière des Chiens et Autres Animaux Domestiques is one of the oldest pet cemeteries in the world.

This elephant kraal is the only one remaining in Thailand, dating back to the 16th century when these massive mammals were integral players in war and trade.

An ethereal glowing blue ocean cave in Croatia.

This former rail stop in Utah was abandoned, repopulated by some nostalgic friends, and now is home to a single DIY aviator who lives in a hangar.

A nightly tradition fills the streets of Flogsta with a collective scream.

Besieged by war, this castle ruin has crumbled into a peaceful picnic spot.

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

Ruins of a Carnegie family mansion on Cumberland Island.

A classic Route 66 landmark that was built with scrap lumber and is held together with kitsch and puns.

Underground monastery and fortress.

A farm in New Jersey grew a most unusual crop for AT&T's testing purposes.

Haunted boulder in a front yard with a witch painted on it.