An underground mansion with fruit-bearing trees and grapes growing beneath the surface of central California.

A former plague hospital turned medical museum.

A museum of alchemy and a basement laboratory all housed in an ancient building in a Gothic tower.

A mysterious light floating in the trees of Arkansas may be a piezoelectric effect.

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

Large Hadron Collider and the Birthplace of World Wide Web.

A museum dedicated to the alleged Roswell Incident.

Statue of a decomposing prince that once held his heart in its hand.

These "anatomical machines" are only one of the many strange items in this Italian crypt.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

A morbid secret lies hidden within the beautiful walls of the Boston Athenaeum.

A lake with hundreds of ancient skeletons surrounding it. The surprise is what killed them.