This renaissance château was home to an infamous witch hunter who sent a hundred suspected witches to their deaths.

The deepest sinkhole in Central Europe comes with a grisly tale and an unusual nickname: “The Stepmother Abyss.”

The world's greatest slide descends 18 stories from this looping mountaintop viewing platform.

The tunnel's elegant proportions keep you snug with no claustrophobia freak-out.

This artificial cave looks like something out of a fairytale.

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

Throughout this shopping mall are medieval ruins that were discovered during the mall's construction.

The rusted creatures wait to be discovered in Prague's botanical garden.

A surreal statue honoring Prague's favorite literary son.

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

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

Countless grotesque faces stare out from this eerie Prague art wall.

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

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

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

An illuminated manuscript comprising the life's work of a lone monk, inexplicably decorated with a portrait of Satan himself.

The three colorful women depict characters from a beloved children's story.

The discovery of an old wall led to the creation of this fascinating museum about the city in the Middle Ages.

A hidden bathhouse in one of Stockholm's oldest and busiest neighborhoods is open to anyone who can find it.

Breathtaking and huge 430 year old maps of Italy.

If you want to talk to the Pope you will have to stare down this surreal vision of Jesus rising from a nuclear hell.

Harlequin costumes, signed scripts, and armor-wearing puppets.

Ever hear of the Milazzo Cage?

One of the most important yet well-hidden museums dedicated to the history of medicine.