An unusual "skull with ears" sits in the crypt of this small church tucked away at the end of a narrow alley.

This early 19th-century graveyard is the final resting place of Vincent van Gogh's mother.

A former plague hospital turned medical museum.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

An ancient passage filled with stalls selling used books, once frequented by Vincent Van Gogh.

A New York–based physician returned home to Spain to build his own elaborate monument to Christopher Columbus.

Oldest Museum of the Netherlands is a true cabinet of curiosities.

An overgrown and largely forgotten cemetery lies hidden within the outskirts of Amsterdam.

This Netherlands museum holds a gloriously mechanical collection of ornate musical automata.

This colorful gate stands as an entrance to the walled city of Old San Juan.

A 19th-century subterranean reservoir repurposed as a contemporary art cave.

A novel collection of medical curiosities housed in an 18th-century surgeon training academy.

Hans Christian Andersen for the postmodern world.

The old observatory in Copenhagen has a spiral corridor used as a racetrack.

A curious collection dedicated to human and animal anatomy and pathology.

This unique Renaissance castle was turned into a home for Nazi occultism.

Between Neo-Pagans and Neo-Nazis, these strange rock formations have a curious cult following and a very strange history.

This proud Teutonic warrior rises out of a German forest heralding a victory and measuring lightning.

This German bone house contains the remains of some 20,000 souls.

The monumental home of Prussia’s eccentric "Cannon King."

400 million years of erosion shaped these fascinating seaside caves, which made an appearance on 'Game of Thrones.'

A mythically themed self-built sculpture park.

Museum dedicated to wax representations of disfiguring diseases.

Things aren't quite what they seem at this mind-bending museum.