Vortex-shaped aquarium hosts Europe's largest school of piranhas and other ocean creatures.

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

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

Across the Pacific in a raft, a museum dedicated to Thor Heyerdahl's now legendary expedition.

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

Sweden's "good old days" painstakingly re-created in a model village.

It houses the remains of a 17th-century version of the Titanic.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

The field of tiny caves that mark this Chinese cliffside are each their own historic Buddhist temple.

This Tang Dynasty behemoth is the biggest Buddha in the world.

The most famous location in China was home to whole dynasties worth of imperial rulers.

This probably wasn't what Mao had in mind.

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

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

Mountain where Jesus was first tempted by the Devil.

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 is expected to be completed in 2026—a century after the death of its architect.

Polish luminaries and masterful folk art find sanctuary in this unique cemetery.

These massive moving sand dunes have swallowed an entire village and are still on the run.

Relive a Polish uprising via an enormous, century-old cyclorama.

This automated sculpture of two men peeing will spell out text messages with their micturition.

Looming communist pillar with a Czech twist.

The traditional Polish croissant, folded 81 times into the shape of a horseshoe, is a legally protected cultural treat.