A nearly 500-year-old sculpture depicts a man eating a sack of babies, and no one is sure why.

The bears of Bern have been a city highlight for over 500 years.

Mountain where Jesus was first tempted by the Devil.

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

A copy of the Statue of Liberty greets visitors to the birthplace of Auguste Bartholdi.

There has been an astronomical clock on this spot since the 14th century.

A marvel of Byzantine engineering under the streets of Istanbul.

Island wonderland for communist autocrats.

The Cathedral of Salamanca has a number of unusual carvings but none so surprising as a modern astronaut.

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

"Portugal's Stonehenge" is made up of nut-like stones aligned with the heavens.

A unique seaside cave where Aleister Crowley faked his own death.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

Birthplace of the "Cat in the Cradle" and a cluster of iconic, original windmills that let the Dutch tame the seas.

Three floors of musical instruments coming from all corners of the world and hundreds of years of musical history.

Climb inside an iron crystal magnified 165 billion times its normal size.

Giant topiary dog once played a role in a terrorist bomb plot.

Bordered by forest on three sides and the ocean on the other, the Great Dune of Pilat is the highest sand dune in Europe.

Houses are tucked between, on, and underneath giant boulders.

A musical instrument played by the sea.

A miniature train-ride through Slovenia's largest cave system.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

This Croatian fairytale castle is slowly falling apart thanks to years of neglect.