Macabre astrological automaton clock dating to the late 1400s.

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

A surreal statue honoring Prague's favorite literary son.

Synagogue built from the stones of Solomon's temple contains the golem of Prague.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

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

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

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

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

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

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

Looming communist pillar with a Czech twist.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

This narrow Ghent alleyway is an officially sanctioned street art tunnel.

A bronze statue of the fictional character nicknamed "Mrs. Hat" from a beloved Belgian comedy.

A little sculpture with a large wardrobe.

Climb inside an iron crystal magnified 165 billion times its normal size.

Theme park featuring miniature replicas of European monuments.

A neo-gothic statue modeled on German Emperor Kaiser Wilhelm II, which had its distinctive mustache shaved off by Nazis in World War II.

Thousands of flamingos and other bird species flourish in these Camargue wetlands.

This salt marsh in Southern France is as pink as the flamingos that inhabit it.

From Carthage's Hannibal to riders of the Tour de France, many have crossed this scenic route through the Alps.

These quaint French houses dangle precariously over a precipice.

Bordered by forest on three sides and the ocean on the other, the Great Dune of Pilat is the highest sand dune in Europe.