This modern French ossuary contains the jumbled bones of 130,000 WWI soldiers.

A memorial for a young woman and her ghost, which are claimed to have caused countless deathly shipwrecks.

This fountain of a little boy that spits on passersby at erratic intervals is a town icon.

Every half hour the eye-rolling clock face sticks out its tongue to mock the good citizens of Koblenz.

The site of Austria's biggest concentration camp now honors its victims.

Be(w)ar(e) the moat around this historic Czech castle.

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

An expansive complex of subterranean tunnels is all that remains of one of Europe's most formidable medieval fortresses.

A stonemason's hilarious revenge came in the form of this peculiarly positioned gargoyle.

These paved rills bring freshwater into Altstadt and could spell wedding bells for whoever stumbles into the waters.

This medieval cathedral houses stained-glass windows featuring saints and pretzels.

Visit a prison tower used during witch tribunals.

The largest underground lake in Europe.

For centuries no one knew there were hundreds of bones and precious artwork hidden beneath this Swiss church.

Macabre astrological automaton clock dating to the late 1400s.

Walk through Czech history in Prague's largest graveyard.

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

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

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

A surreal statue honoring Prague's favorite literary son.

This charming wooden church was disassembled and moved not once but twice before settling in this Prague garden.

The medieval "Bearded Man" relief still serves as a clever flood warning marker.

Local folklore claims that this wall was not built for defense, but to provide labor during a time of famine.

A grumpy old water goblin guarding an old mill on the Devil’s Stream in Prague.