This top-secret nuclear bunker hidden in a Bosnian mountain has been converted to a modern art exhibition space.

A bridge destroyed three times: once as a ruse, then in an actual attack, and finally for the movies.

The sad remains of a monument to martial arts legend and movie star Bruce Lee—in the middle of Balkans.

Bridge that died in war and was resurected.

This picturesque monastery at the base of a cliff is a peaceful oasis open to all visitors.

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

This sculpture of a rhinoceros suspended above a city square is meant to evoke the weight of the human condition.

Some 80,000 Delft Blue tiles line the inside of this Amsterdam walkway.

The world's largest bicycle shelter can hold more than 12,500 two-wheelers.

Take a stroll through the hellish grotesques of Hieronymus Bosch in this elaborate Netherlands church.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

A brutalist gem towering over the heart of Milan.

One of the most well-preserved castles in Italy also contains a rare medieval example of a port fortification.

Pilgrimage site for star-crossed lovers.

One of the tallest bell towers in Italy plays a particular melody at just two times each day.

The palace window through which Protestant nobles flung two Catholic regents, thus sparking the Thirty Years' War.

This Czech church doubles as something of a permanent fashion exhibition for a statue of the Infant Jesus.

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

Dedicated to the works of the legendary special effects artist.

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 surreal statue honoring Prague's favorite literary son.

The hidden lair of an alchemist rediscovered in a 2002 flood.