This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

The mummified right fist of a 1,000-year-old saint-king sits inside an ornate golden reliquary.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

A Hungarian pharmacy museum with a box full of mummy powder.

The fairy tale castle of the “fairy-tale king,” this was also the inspiration for Disney’s “Sleeping Beauty.”

Swarovski's museum/theme park is a fake diamond fantasia overlooked by a giant.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

Unable to build support structures on glaciers, the engineers for this tramway were forced to design a unique system.

Milan's duomo is covered in beautiful carving including a curious "dinosaur-like" beast.

A medieval village holds a very modern hotel.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

In the fictional world of Kcymaerxthaere, celestial wonders marked a portal to a powerful route of travel at this site in Madrid, Spain.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.

Site of a classic 19th-century physics experiment to prove the earth is rotating.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

The celebrated eyesore created by starry-eyed sweethearts.

America's only nuclear missile silo open to the public.

An old saloon in the West filled with history, and according to some, a few dozen ghosts.

A reproduction of earth's many biomes.

The record holder for the world’s largest peach.

This man-made mound monument was built out of soil from all across the Polish empire.