The charmingly disheveled clock tower of Tbilisi's puppet theater.

These enormous, stern-faced statues greet visitors with lanterns, and sometimes costumes.

A subterranean house of worship carved right out of the bedrock.

An abstract monument to a symphonic composer.

An enormous and lavish Gothic church in Czechia.

A church of bones, decorated with 40,000 human skeletons.

This giant urban staircase was built to keep the city's brave fighting men from getting waylaid in the red light district.

A little sculpture with a large wardrobe.

Meet the bronze beloved pet to a family of famous peeing statues.

Rare wooden escalators lead deep down into an otherwise staggeringly monotonous tiled tunnel.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

A significant example of Czech cubist architecture—a style you won't find anywhere else in the world.

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

Steadily reminding Czechia of its past.

A surreal statue honoring Prague's favorite literary son.

The slender brass strip in Prague's Old Town Square was used to tell time from 1652 to 1918.

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

Looming communist pillar with a Czech twist.

This spooky statue sits outside a famous Prague theater.

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

This walkway is so narrow it needs its own light to stop pedestrian traffic jams.

A mocking tribute to the past and modern leadership of Prague.

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

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