The sign at the garden gate reads: "These Plants Can Kill."

This coffee shop lies hidden beneath a historic church.

This railroad overpass is said to be home to a murderous goat-man whose very legend has led to very real deaths.

These sub-farmland caves are home to a majestic stalactite known as the "Crystal King."

A real flying saucer, contracted by the U.S. Air Force.

This reconstructed Norman castle is the world's most accurate, from location to livestock.

Home to Alan Turing, the cracking of the Enigma code, and Captain Ridley's shooting party.

One of the greatest movie directors of all time lived and worked in this London flat from 1926 to 1939.

Its collection includes a broad array of social, geographic, graphic design, and political history.

Classic game cookery takes center stage at what's widely considered London's oldest restaurant.

A historic London pub with prison cells in the cellar and a "spy room" on the second floor.

A tongue-in-cheek arcade where the games are based on everyday life.

Traveling collection of amazing automata.

Wedged between two buildings at the Great Ormond Street Hospital is this secret music installation.

This museum tucked below a charming cafe gives a brief snapshot of photographic history.

These bronze pamphlets remember a remarkable group of Germans who fearlessly opposed the Nazis in the very center of their power.

The patron saint of spinsters grasps a container of dried blood.

Featuring Zürich's only authentic 14th-century plague doctor's uniform!

A 200-year-old tavern challenges guests to finish a glass of wine while hanging from a ceiling beam.

The footprint of a frustrated devil in Munich's Cathedral.

One man's personal collection of KGB memorabilia is presented along with his strange viewpoint.

Buried five stories underground, this Soviet bunker is packed with gas masks and Cold War paraphernalia.

The hidden lair of an alchemist rediscovered in a 2002 flood.

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.