A collection of old neon signs from all over Poland line a secluded courtyard.

A 90-ton, gravity-defiant steam locomotive shoots for the skies in this bizarrely beautiful public artwork.

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

This oddly beautiful water cistern is a techno-temple to the wet stuff and a multimedia masterpiece.

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

This spooky statue sits outside a famous Prague theater.

One of the famous Czech artist's lesser-known Prague installations appears to be a glowing fetus affixed to a drainpipe.

A giant interactive periodic table with real samples of the elements.

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

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

A bus with a butt and biceps to put Olympic athletes to shame.

An existential riddle in the world's largest ancient castle.

Increasingly decayed figures stand as a powerful reminder of the human costs of Czech Communism.

This bar and museum are devoted to the controversial comic book work of Kája Saudek.

One man's personal collection of KGB memorabilia is presented along with his strange viewpoint.

What looks like a crashed Zeppelin is actually a bright, airy reading room perched atop a modern museum.

An Orwellian sculpture with eyeball cameras watches passersby.

Microscopic scenes; some call it novelty, some call it art.

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

Street artists transformed an abandoned air vent into the beloved Star Wars robot.

An eerie, existential museum dedicated to the author of "The Metamorphosis."

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

The tunnel's elegant proportions keep you snug with no claustrophobia freak-out.

The risqué mixed-media sculptures are supposedly a metaphor for Czech politics.