Climb a steep hill in 90 seconds on the second-oldest urban subway in the world.

A surprising and unconventional mosque hidden in the subsoil of Istanbul.

The fairy tale castle of the “fairy-tale king,” this was also the inspiration for Disney’s “Sleeping Beauty.”

This tribute to the 16th-century composer is now an unusual shrine to Michael Jackson.

This magnificent museum claims to house the cranium of a disciple and the skull of a pope.

Golden cobblestones remember a time when this small alley was used to avoid having to give a Nazi salute.

A fearsome dragon clings to a corner of Munich's city hall.

Oddly enough, a pair of Wolfs funded the construction of this Little Red Riding Hood sculpture.

An unexpected public exhibit showcases the diversity of Dutch street posts.

A 'living museum' in Leiden, the oldest of its kind in the Netherlands.

Every half hour the eye-rolling clock face sticks out its tongue to mock the good citizens of Koblenz.

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

Power line with pylons on huge concrete bases to prevent terrorist attacks.

Sausages, schnitzel, and weiners.

An old slaughterhouse now holds the largest collection of pig artifacts.

This natural hill rose another 130 feet from the debris and rubble added after World War II.

This old wooden funicular railway leads to a cemetery in the forest.

The highest cold-water geyser in the world.

A large measuring stick marks the lowest point of a country that is partially under sea level.

Lonely minaret stump of a destroyed city.

Time capsule of a museum, in which the Soviet Union remains alive and kicking.

Dedicated to a Bolshevik revolutionary, this museum is a true time capsule of the Soviet era.

This retro, UFO-like structure is a remnant of the Soviet-era circus.

This library dates back to the late 17th century and was one of the first public lending libraries in England.