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

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

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

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

A quasi-futuristic roof sits atop a medieval Bohemian monastery damaged during World War II.

This spooky statue sits outside a famous Prague theater.

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

It is said that each of the white stones in the red facade of this medieval house represents the head of a murdered Swedish noble.

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

Explore the frozen river and take a walk to a nearby island on some of the longest ice roads in Sweden.

One of the world's first dedicated bank buildings in the world is now the oldest one.

Founded as a refugee camp, now a popular tourist spot.

An awe-inspiring mosque in Morocco with one of the tallest minarets in the world.

This vast masterpiece of Moroccan architecture spreads across 20 acres.

Fortune tellers, snake charmers, poets, and storytellers all gather on this historic square in Morocco.

Steadily reminding Czechia of its past.

Nine bronze hands protruding from a wall honor the student uprising that led to the fall of Czechoslovakia's Communist government.

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

This doorless 20th-century elevator doesn't stop or slow down.

A Baroque mansion with ties to legendary magicians and alchemists.

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

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

Throughout this shopping mall are medieval ruins that were discovered during the mall's construction.

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