Hidden beneath the famous St. Peter's Basilica is a veritable city of the dead that may hold the remains of St. Peter himself.

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

America's oldest archaeological site or a muddled case of wishful thinking.

A former zoo turned public park, where visitors can hang out in the old animal cages.

Restaurant in a 1741 farmhouse that touts the story of its haunting on its menus.

The 92-foot-tall structure is based on the aircraft that carried the first Americans into space.