This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

Near the former site of numerous witch burnings, this lavish Edinburgh mainstay pays homage to Scotland's brutal history.

Overlooked by many, the two famous Scottish warriors guard the main gate of Edinburgh Castle.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

A rare wooden coffin set vertically into the Gothic arch of an ruined church.

Horrifically creative torture devices and shame punishments line the walls of this chilling museum.

A church of bones, decorated with 40,000 human skeletons.

Two stunning 17th-century libraries and a cabinet of curiosities.

Increasingly decayed figures stand as a powerful reminder of the human costs of Czech Communism.

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

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

A surreal statue honoring Prague's favorite literary son.

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

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

There has been an astronomical clock on this spot since the 14th century.

The castle was reconstructed to fit Kaiser Wilhelm II's romanticized vision of the Middle Ages.

A copy of the Statue of Liberty greets visitors to the birthplace of Auguste Bartholdi.

The birthplace of the builder of the Statue of Liberty is now a museum dedicated to his work.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

This Roman statue is missing a limb from when the Venetians stole it from Constantinople during the Crusades.

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

It is said that each of the white stones in the red facade of this medieval house represents the head of a murdered Swedish noble.

Sweden's "good old days" painstakingly re-created in a model village.

It houses the remains of a 17th-century version of the Titanic.