The footprint of a frustrated devil in Munich's Cathedral.

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

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

Third time's a charm, or in this case, two testicles are.

Two very green residential towers cleaning the air in one of Europe's most polluted cities.

This giant middle finger statue sends an unambiguous message to Italy's bankers.

An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.

The mark of the Devil's horns on a marble column in Milan.

The largest bell in the world has been swinging high above a Cologne cathedral for almost a century.

The narrowest street in the world is in danger of closing up entirely.

This grisly effigy displays an early Christian martyr who was skinned alive and beheaded.

For 32 years the famous Ringling Bros circus troupe spent winters in this sunny spot in Florida.

A memorial dedicated to the victims of the Columbine High School shootings.

The strip club's VIP lounge is actually a rare repurposed Futuro House.

A monument celebrating the idea of reaching inaccessible places.

This ancient sinkhole-turned-healing-pool is a treasure trove of archeological discoveries and may even be the Fountain of Youth.

The largest retailer of seashells in the world.

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

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

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

Macabre astrological automaton clock dating to the late 1400s.

A striking 12th-century-style castle built on the edge of a cliff.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

During the summer months, giant teddy bears take over Paris near Les Gobelins metro station.