London's smallest police station is barely the size of a phone booth.

See massive fossils that are over 200 million years old in northeastern Arizona.

Moonbows over Kentucky.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

An astounding collection of medical specimens, including bits of President Lincoln.

A small but immensely extravagant palace built by the "Night King."

This historic "City of the Dead" lies prominently in the center of New Orleans' famous Garden District.

New Orleans' famous cemetery, located on the site of a former race track.

The final resting place for the remains of 143 Habsburg royalty.

Enjoy an overnight at an old haunted B&B site of the Borden family murders.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

A marvel of Byzantine engineering under the streets of Istanbul.

Two thousand artifacts from around the world collected by one woman who loved to travel.

The 953 windows undoubtedly make this the world's most beautiful screened porch.

An eccentric inventor's castle home with its own indoor weather system.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

The sci-fi villain is a little-known inhabitant of the U.S. capital's largest cathedral.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

A museum dedicated to exhibiting remarkable outsider art.

The trials and tribulations of marking Poe’s grave.

The hallucinogenic center of the ancient world.

The celebrated eyesore created by starry-eyed sweethearts.

Roman ruins top white travertine terraces formed by ancient hot springs.