The competition: breathe deeply as long as you can.

Salute the leader of the proletariat.

One of the few remaining American elm trees in New York’s Tompkins Square Park was the birthplace of a new religion.

A graffiti Mecca welcoming artists from around the world.

Walk into the 19th century without leaving Brooklyn.

The return of something once considered a basic part of life.

A decommissioned military complex that's now a modern industrial park.

Church featuring "high Victorian gothic" architecture.

A massive art collective tries a new take on Brooklyn's DIY music scene—by making it fully legal.

A surreal statue honoring Prague's favorite literary son.

Looming communist pillar with a Czech twist.

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

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

What looks like a suicide in progress is actually a statue of Sigmund Freud.

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

Macabre astrological automaton clock dating to the late 1400s.

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

Museum preserving torture methods from the past.

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

A man has revenged his true love's betrayal through tears and stone genitalia.