The only Roman honorific column in Istanbul.

The eclectic home of a leading Turkish architect is a gorgeous piece of eye candy.

No one is sure if the world's fourth-largest diamond had been found in a rubbish heap or was pawned by Napoleon's mom.

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

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

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

A controversial artwork draws attention to the dark history of Prague's "Suicide Bridge."

Looming communist pillar with a Czech twist.

The oldest garden in Prague, once part of an medieval orchard.

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

An eerie, existential museum dedicated to the author of "The Metamorphosis."

This walkway is so narrow it needs its own light to stop pedestrian traffic jams.

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

Steadily reminding Czechia of its past.

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

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

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

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.

A surreal statue honoring Prague's favorite literary son.

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

An existential riddle in the world's largest ancient castle.

Macabre astrological automaton clock dating to the late 1400s.

A crucified and bearded female saint.