Picturesque intersection of witchcraft and ancient Christianity.

An abandoned tuberculosis hospital said to be haunted by the patients who died within its walls.

An early work of the architect Álvaro Siza Vieira, these swimming pools blend into the beach.

A public park off the beaten path with a beautiful waterfall and 13th century Cistercian abbey.

Largest necropolis in the Mediterranean.

The birthplace of Karl Marx is now a museum dedicated to the communist revolutionary's life and work.

This hill made entirely of ancient Roman jars was simply a garbage dump to the people of the time.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

An alchemist's "magic door" stands in the middle of a Roman park.

This enchanting 600-year-old tree is so magical it inspired the beloved tale of Pinocchio.

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

The great Danube river starts here.

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

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

Flowers have mysteriously appeared on her effigy every day for the last 150 years.

A geothermal energy project gone wrong is fracturing the city's picturesque architecture.

A series of haunting wooden totems are hidden in the woods surrounding a German environmental center.

The only microgravity tower in Europe can produce nine seconds of weightlessness.

The mass grave of the 27 victims of the "Vampire of Hanover."

An intricate and amazing house built by architect Karl Junker.

Visit the ancient, mysterious Roman catacombs ... in the Netherlands.

Be it nature, art, or abandoned military architecture this eclectic German "museum" has you covered.

An abandoned underground bathroom is now a space for public art.