This home designed for chocolate magnate Antoni Amatller is an exquisite treasure-box of Catalan Modernism.

An early 20th-century bullring converted into a modern shopping center.

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.

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

Black cat statues guard this temple-like Egyptian revival factory.

Catacombs turned marketplace.

These mysterious Viking chess pieces spent centuries hidden on a remote Scottish island.

This marine reptile was discovered by one of the 19th century's greatest fossil hunters.

An architectural oddity hides in plain sight on this iconic London bridge.

The "lost friend” is the most famous of the six moai statues that were removed from Easter Island.

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

Eighty million natural history specimens call this gargantuan museum home.

A Neolithic celestial calendar standing in a nondescript wheat field.

A Gothic-inspired fish market is Gothenburg's best place to find loaves and fishes.

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

This handsomely carved wooden church is more than 800 years old.

A bold and controversial statue of a Christmas icon, blending adult undertones with playful humor, stands year-round in a traffic circle.

The design of this beautifully crafted building was inspired by Norwegian glaciers.

Elaborate tile work in this railway station tells the story of Portugal.

This restored Portuguese cafe may well be the most beautiful place in the world to grab a Big Mac.

A hidden three-foot-wide house separates these two regal churches.

A small but charming botanical garden that contains many exotic plant species.

This enormous sardine in the Segura River pays tribute to an annual post-Lent tradition.

Originally planted by the ancient Carthaginians, this sprawling palm grove is one of the largest in the world.