A museum dedicated to the history and exploration of both popular music and science fiction.

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

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

The seamy, underground secrets of Portland's criminal past.

Here, at the "world's longest art gallery," you'll find forty miles of ancient petroglyphs and pictographs.

A 200-year-old bar in the historic French Quarter refuses to give up its place in history, nor its role in securing ours.

A collection of oddities including Dr. Kevorkian's suicide device, the Thanatron.

A 100-year-old purveyor of curiosities, curios, and kitsch featuring mummies, shrunken heads, and a Fiji Mermaid.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

A walk through the historic city center, under the streets of Seattle.

An old vending machine serves up unpredictable beverages from its seemingly magical insides.

Elevated freight railway turned wildly successful urban park.

A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

Most-visited and most-photographed slot canyon in the American Southwest.

The vast, legendary catacombs hold secrets much stranger than stacked bones.