Go inside to really appreciate this 500-year-old technological masterpiece.

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

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

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

A mocking tribute to the past and modern leadership of Prague.

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."

Housing the famous Norwegian ice-defying 19th century polar exploration ship.

Home to three historic ships from the age of Vikings.

This Budapest bar allows drinkers to leave their mark on the walls, floor, and even ceiling.

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

Seat of the Duke and Duchess of Devonshire for centuries.

The oldest inn in England served brew to the crusaders.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

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

A Lycian city of the dead carved into the hillside of Southern Turkey, complete with startlingly human touches.

A church of bones, decorated with 40,000 human skeletons.

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

The celebrated eyesore created by starry-eyed sweethearts.