This magnificent castle grew from a small Moorish fortress, and reportedly inspired two iconic Disney castles.

A pair of gigantic baby heads greet passengers at Atocha Station.

Straight out of a nightmare, barcode-faced babies climb up and down Prague's television tower.

Microscopic scenes; some call it novelty, some call it art.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

Monument to a suicide protesting the Soviet invasion.

A surreal statue honoring Prague's favorite literary son.

Nine bronze hands protruding from a wall honor the student uprising that led to the fall of Czechoslovakia's Communist government.

Originally used to sell brandy, the bull-shaped billboard became an iconic symbol of Spain.

This distinctive Crescent City tradition dates back to the days of horse-drawn carriages.

This amazing piece of modern art honors the hundreds of fishermen killed during Cambrils' "year of misfortunes."

Spain's unique Mosque-Cathedral has been a place of worship for both Muslims and Christians throughout its history.

Considered the birthplace of the Copper Age and Bronze Age, the river is tinted red from 5,000 years of mining.

Two towns are linked by an engineering marvel masquerading as a boring suspension bridge.

This chest hospital with a dark, haunted past serves as a fitting set for horror films and a paradise for ghost hunters.

Spanning the El Chorro gorge, this pathway used to be one of the most dangerous crossings in the world.

A lush indoor jungle fills this bustling Madrid transportation hub.

This unique rock formation is quite the local celebrity, although one day it may come crashing down.

This local emblem is the oldest and largest dragon tree in the Canary Islands.

Bask in the 19th century grandeur of an eccentric Freemason millionaire's private gardens.

An unusual but excellent display created in the 1930s as propaganda against the Freemasons.

A hidden medieval crypt where a famous legend says the devil used to teach black magic.

This museum in the famously blue neighborhood of Sidi Bou Saïd showcases a traditional Tunisian lifestyle.

The gorgeous entrances into the city's underbelly look more like grand halls than subway stops.