Go inside to really appreciate this 500-year-old technological masterpiece.

Two stone columns flank the grand Venice square, but there were supposed to be three.

This palatial spiral staircase was so unusual the name "snail" was given to the noble family who built it.

An iron dragon with a long neck covered in feathery scales perched above one of Venice's most popular squares.

According to tradition this is the oldest church in Venice, but its actual age is a mystery.

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

This remote location of this Moorish stronghold means it doesn’t attract many tourists—and that it still has the aura of fear and bravery of the 1300s.

From Austrians to Nazis to Soviets, this historic Budapest fortress has a history as complex as the city itself.

Tucked away near more famous landmarks lies a statue meant to symbolize the confluence and continuing development of human culture.

This spooky statue sits outside a famous Prague theater.

A 400-year-old mummified arm dangles from the ceiling of St. James the Greater, serving as a warning to thieves.

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

Nine bronze hands protruding from a wall honor the student uprising that led to the fall of Czechoslovakia's Communist government.

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

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

Buried five stories underground, this Soviet bunker is packed with gas masks and Cold War paraphernalia.

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

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

Macabre astrological automaton clock dating to the late 1400s.

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

A small monument on the outskirts of Prague, where one of the bloodiest conflicts in the country's history was decided.

A 4,000-year-old burial site hides behind a roadside Burger King.