Straight out of a nightmare, barcode-faced babies climb up and down Prague's television tower.

Looming communist pillar with a Czech twist.

Tourists often confuse this beautifully ornate former cigarette factory for a mosque.

This ex-prison dates back to the Middle Ages.

In the center of Wrocław's old meat market stands a somber tribute to the city's livestock.

The silly symbol for an underground protest group is now scattered around the city.

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

Ruins of a German castle on top of a towering stone pillar.

The old observatory in Copenhagen has a spiral corridor used as a racetrack.

Amsterdam's former hotspot for public executions and dissections.

An ancient passage filled with stalls selling used books, once frequented by Vincent Van Gogh.

A public urinal so pretty, it was declared a national monument.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

This intricately carved and hilariously huge bed was such a famous symbol both Shakespeare and Byron used it in their writing.

The fences outside some of South London's estates are made from recycled World War II stretchers.

A quirky statue in Bermondsey made by 100 public participants with goggles, chisels, and mallets.

This one has sailed five times as far as Sir Francis Drake's famous ship.

A 2000-year-old Roman amphitheater lies just below Guildhall Yard.

A Jenga-style cylindrical tower of books that appears to go on forever.

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

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

On a teardrop-shaped island in the Danube, the ruins of a convent and the final resting place of a saint.

This charming cobbled backstreet is the most Instagramable street in Paris, much to the residents' annoyance.

A sprawling Baroque park with 300-year-old hydro-pneumatic waterworks.