World's Scariest Hauntings

Being situated on an ancient pagan burial site and a Ley Line intersection in Gloucestershire, England, it's no wonder the Ancient Ram is one of the most haunted houses in the world. The Bishop of Gloucester, upon a failed exorcism of the building said it was "the most evil place I have ever had the misfortune to visit".

An investigation of the Edinburgh Vaults, situated under the cobbled streets of a haunted city.

Built in 1779, Bodmin Jail in Cornwall has housed many notorious criminals, some of whom were put to death on the grounds. It is now a museum and soon to be a hotel complex. But it's believed that many of the spirits have never left the building. Paranormal manager, Mark Rablin and ghost hunter, Tony Ferguson, share stories and footage you have to see to believe it!

Standing since the 12th century in Rye, on the south coast of England, The Mermaid Inn once played host to the notorious band of smugglers, the Hawkhurst Gang. Medium, Charlotte Underwood, describes the day she was physically assaulted by a ghostly smuggler and head porter, Glenn Bailey tells us how he is personally targeted by co-leader of the Hawkhurst Gang, Thomas Kingsmill.

Built in 1832 in New York City, the Merchant's House Museum is a time capsule of 19th century Manhattan. Some say the Tredwell family, who lived in the house for about 100 years, are still in residence. Anthony Bellov, who runs the museum, shares his paranormal experiences within the house and local ghost hunter Dan Sturges shares the ghostly recordings that he's captured in the Tredwell home.

Built in 1952, Kelvedon Hatch bunker was designed as a safehouse in case of a Nuclear attack. Nestled deep in the Essex woodland, it was only revealed to the public in 1992 upon its decommissioning. An ancient burial ground was disturbed during the construction and it's believed that spirits were unleashed. Ghost hunter, Mickey Gocool and paranormal enthusiast, Sadie Forth tell their stories.