Before serving as James Bond's Casino Royale, this Victorian-era spa catered to the world's elite.

A series of playful yellow penguins share a serious message about the environment.

Enormous sandstone towers loom within a Czech forest.

Thirty creepy ghosts now inhabit this decaying 14th-century church.

An old asylum graveyard that's been abandoned for half a century attracts those seeking a dark thrill.

Nine bronze hands protruding from a wall honor the student uprising that led to the fall of Czechoslovakia's Communist government.

A plaque marks the spot where the saint was shoved off the Charles Bridge and into the river.

The 14th-century ruins are said to contain healing powers.

This unassuming building produced some of the world's most famous bells.

This innovative steam machine was no doubt the most famous of the pioneer locomotives.

This quaint mortuary chapel hides a stunning Celtic Revival and Art Nouveau interior.

Cliffs full of fossils at the portal to England's Jurassic Coast.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

A cheeky architectural easter egg.

Living towers made of people that are now recognized by UNESCO.

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

The oldest giants in Catalonia are now displayed in a 14th-century Gothic church.

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

The largest Art Nouveau complex in the world is a Barcelona hospital with a 600-year-long history.

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

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.

Thousands of slain Soviet soldiers are buried within the shadow of this enormous obelisk.

This Slovakian statue of an emerging sewer worker might just be a bronze peeping tom.