A defunct all-girls college which may be the resting place of H.P. Lovecraft's real-life Necronomicon.

The site of the Andover Witch Hunts, which ended with more witch accusations and arrests than Salem.

Former abode of notable poet, complete with literary references and stories of ghosts.

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

It was an experiment to prove that glacial boulders and rocks can be used in constructions and dwelling.

A castle built for love, and abandoned due to heartbreak.

This castle was designed to have as many windows as there are days in the year.

Over time, this castle grew to encompass the entire island.

This island castle contains enough secret passageways to support a season of Scooby-Doo episodes.

The United Arab Emirates's biggest and oldest fort pays homage to a lost era.

One of the best-preserved modern fortresses was part of a pivotal moment in the Italian Risorgimento.

This magnificent castle grew from a small Moorish fortress, and reportedly inspired two iconic Disney castles.

This castle was once considered as an option for the Royal Family's alternate residence, but you may know it better from the 'X-Men' movie.

A wealthy aristocratic family built this Disney-worthy, fairy-tale castle.

The site of murders and Satanic cult gatherings.

An abandoned facility that has become a place of ritualistic satanic worship, or so rumor has it.

This home is steeped in history from, George Washington to George Corwin, High Sheriff during the Salem Witch Trials.

A collection of full-size movie monsters opened to the public.

A museum dedicated exclusively to the lore and history of ouija boards.

The headquarters in Salem doubles as an occult art gallery.

Home inspired by the crystal rock formation of the Emerald Estates.

Once the local rulers had gone these enchanting ruins housed common folk in an almost real life fairy tale.

This noble mash-up in eastern Luxembourg is part Medieval, part Renaissance, all castle.

A medieval church built into an ancient cave.