This park feels like a lush little jungle full of wildlife nestled within São Paulo.

This singular art museum in São Paulo is unique inside and out.

One of São Paulo's tight urban intersections has become a haven for graffiti artists ever since a single Batman started the trend.

A stunning Catholic cathedral built by a curve-loving communist in Brazil’s newly created capital.

Two stone columns flank the grand Venice square, but there were supposed to be three.

The former Nazi concentration camp stands as a museum to remember this dark chapter in European history.

An underground city of salt.

Eighty million natural history specimens call this gargantuan museum home.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

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.

This museum housed in a former brothel explores the past and present of sex work in Amsterdam.

Bullet holes in the church wall are a reminder of the violence that followed the assassination of a high-ranking Nazi officer.

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

Macabre astrological automaton clock dating to the late 1400s.

Dine amidst exotic plants at this former royal greenhouse.

Baroque celebration of the end of the Great Plague of Vienna.

This historic toy museum brings a little whimsy to a city not usually remembered for such things.

Every hour the doors open to reenact the legend of the heroic mayor who saved his town by drinking a gallon of wine.

The entrance to this Frankfurt subway station looks like an old tram car crashed into the concrete sidewalk.

A castle from the Holy Roman Empire that hosts traveling youth... in its stables.

This beautiful 19th-century temple stands atop the ruins of its predecessor.

Go surfing on this urban wave, "hacked" by local surfers.