The largest collection of two headed animals in the world.

After starting as a whimsical tourist attraction that eventually found its way to ruin, these renovated canals offer a lush and exotic locale on the Pacific Coast.

A sign at the end of the Santa Monica Pier marks the traditional end of the legendary American highway.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

The ruins of the castle that chemicals built.

Once close to extinction, there is no shortage of elephant seals on the beaches of Año Nuevo State Park.

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

Historic funicular railway, believed to be the shortest railroad in the world.

Sweden's "good old days" painstakingly re-created in a model village.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

A collection dedicated to the treatment of disease, held in London's oldest hospital.

The largest of London's subterranean rivers and once a mad, bad center of London life.

Hidden beneath the streets of London is a secret subway that only carried mail.