The largest ice cave in the world is thought to be the entrance to hell according to Austrian legend.

Dress up like a miner and take a slide into the disco-lit depths of this once foundational salt mine.

The stones of this formerly witch-obsessed castle were used to build a church.

The prototype for all Nazi concentration camps.

The celebrated eyesore created by starry-eyed sweethearts.

Brussels' favorite peeing boy has a sister.

Meet the bronze beloved pet to a family of famous peeing statues.

A little sculpture with a large wardrobe.

Christ's blood preserved in a Belgian town.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

Unsurprisingly, Holland is home to one of the most magnificent flower gardens in the world.

A Dutch clog company in the town of Zaandam loves the wooden shoes so much it made a museum for them.

An ancient capital city that dates back 3,000 years old and harbors many surprises.

A sanctuary for sickly, stray, or wounded donkeys.

This mountaintop lake bubbles and steams in a perpetual boil, thanks to its direct link to the Earth's interior.

This striking, two-toned confluence of rivers is visible from space.

This odd Chilean waterfall-cano hotel must be entered via a rope bridge.

This red lake 4,000 meters above sea level is home to rare flamingos.

On the outskirts of a desert trading village high on the Andean plain, steel giants have been destroyed by salt winds.

A seemingly endless landscape of pure salt stretches far across Bolivia.

The Uros people live on floating reed islands in lake Titicaca.

A remote candy-striped mountain in the Peruvian Andes straight out of the pages of Dr. Seuss.

Huge stone depressions which may have acted as an Incan agricultural experiment.

Preserved Inca city and site of the last Inca stronghold against the Spanish conquistadors.