The last Viking king of Denmark is buried inside the crypt of this cathedral.

After funding was cut for a memorial to the Danish author, the sculptor had his statue ceremonially lowered into the city harbor.

Eight naturally mummified bodies in glass coffins are housed in an underground crypt.

The 20-mile causeway that separates the Netherlands from the sea.

This enormous storm barrier is one of the largest moving structures on Earth, with each arm taller than the Washington Monument.

A crucified and bearded female saint.

Two stunning 17th-century libraries and a cabinet of curiosities.

What looks like a suicide in progress is actually a statue of Sigmund Freud.

Two monstrous faces loom over a village in Czechia.

Underneath this small church are 15,000 bones, arranged by an obsessive academic.

Bohemian paradise covered in majestic forests.

A massive, abstract lookout tower providing a panoramic view of Prague.

A 400-year-old mummified arm dangles from the ceiling of St. James the Greater, serving as a warning to thieves.

A Jenga-style cylindrical tower of books that appears to go on forever.

The palace window through which Protestant nobles flung two Catholic regents, thus sparking the Thirty Years' War.

An eerie, existential museum dedicated to the author of "The Metamorphosis."

Walk through Czech history in Prague's largest graveyard.

An existential riddle in the world's largest ancient castle.

This spooky statue sits outside a famous Prague theater.

This Prague museum collects brutalist relics and memories from the country's former Soviet rule.

A Baroque mansion with ties to legendary magicians and alchemists.

A controversial artwork draws attention to the dark history of Prague's "Suicide Bridge."

A collection of anatomical samples from one of the first anthropologists to suggest that humans reached North America by crossing the Bering Strait.

Monument to a suicide protesting the Soviet invasion.