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

A small island less than half a mile from Venice is a forbidden island with a dark and twisted past.

A 16th-century horror show built in a lovely Italian garden.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

Collection of trolley cars in the woods represent one man's attempt to preserve transportation history.

An abandoned Nazi explosives plant founded by the inventor of dynamite is now an underground museum.

This abandoned mansion has a window for every day of the year, and is a temple for ghost hunters.