For decades, Puerta del Sol has been illuminated by a giant, guitar-wielding bottle of sherry.

Commonly acknowledged as the only public monument to the Devil himself.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

An ancient Egyptian temple in the middle of Madrid, Spain.

The discovery of an old wall led to the creation of this fascinating museum about the city in the Middle Ages.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

Those who own or stay at this 500-year-old, allegedly cursed house often meet terrible fates.

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

Giant eggs, walls of bread, and nightmare surreality mark the largest collection of works by Salvador Dalí.

A medieval house adorned with enigmatic carvings, including one of a man displaying his masculine attributes.

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

Theme park featuring miniature replicas of European monuments.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

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

A curious carving hides on a marble column in the Mosque-Cathedral of Córdoba.

France's Lilliputian park displays over 100 of the country's monuments for visitor perusal.

Breathtaking and huge 430 year old maps of Italy.

A sinister pyramid in the Frari contains the heart of the famous neoclassical sculptor.

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

Eighty million natural history specimens call this gargantuan museum home.

For over 300 years this little carving has been the city’s good luck charm.

This grubby wall is said to be one of the Earth's esoteric energy centers.

The final resting place of the great navigator, or maybe his brother.

An underground city of salt.