Natural time capsule containing an alien ecosystem.

Terrifically morbid cemetary and site of famous Paracelsus' grave.

France's most famous cemetery, with some of its most curious tombs.

The final resting place of the Emperor of the United States and Protector of Mexico.

The one-time watch house for incoming ships at the Golden Gate now stands abandoned and hidden in trees.

A 300-ship graveyard, with a few still visible at low tide.

A winding path built in secret on the edge of the continent.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

The skull of the patron saint of lovers lies in the Basilica di Santa Maria in Cosmedin—maybe.