This tremendous timepiece was once the largest cuckoo clock in the world.

An exquisite panometer representing Dresden as it was from 1695 to 1760.

This fountain of a little boy that spits on passersby at erratic intervals is a town icon.

This bakery and museum offers tours of the tastes and mythology of Aachen's signature spice biscuit—just don't ask for the recipe.

This contentious squat has stood through fire, violence, and government intervention as a hotbed of leftist protest.

This historic little railroad runs through some of the most beautiful scenery in Germany.

Wax models of disease and deformity are on display at this German medical museum.

A sprawling Baroque park with 300-year-old hydro-pneumatic waterworks.

These fantastically named natural pools look like something out of a Scottish myth.

Near the former site of numerous witch burnings, this lavish Edinburgh mainstay pays homage to Scotland's brutal history.

The world's first underground farm is in a World War II bomb shelter beneath the streets of London.

The largest timber structure in Europe.

The unusual clock on this 18th-century market building has an extra minute hand for "Bristol time."

This iconic 1,000-year-old medieval castle is a favorite of the film industry, most notably as the location for Hogwarts in Harry Potter.

Mary Kelly was last seen here before she was murdered by Jack the Ripper.

This collection of illusory paraphernalia has been culled from the history of London's premier magician's club.

This churchyard arbor is surrounded by hundreds of gravestones placed there by author Thomas Hardy.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

Secret North Korean passage discovered below the world's most dangerous border.

A striking, modern church devoted to a nun who loved God and beer.

Plundered and left asunder by grave robbers, this ancient necropolis has been painstakingly pieced back together.

A memorial to the politician who became Great Britain's first fatality to be caused by a locomotive.

The final resting place of the man whose name has become synonymous with greatness.

Belfast's namesake river still winds below the city center, hidden from sight.