A particularly creepy abandoned hospital that sparks interest for lovers of the supernatural.

An uber-secure, windowless tower of doom in the center of Manhattan is an NSA spyscraper.

"Where the ducks walk on fish."

A perfectly preserved abandoned criminal asylum in South Australia.

Enjoy an overnight at an old haunted B&B site of the Borden family murders.

Steepest flood safety railway in the entire world.

Memorializing an American tragedy of massive proportions.

An occult-y, historic hotel with the World's Largest Ouija board on the roof.

This well-preserved Cistercian Abbey in a romantic pastoral setting has inspired artists like the poet Wordsworth.

This Roman amphitheater is said to be King Arthur's legendary Round Table.

High Victorian fantasy created a fairytale castle out of a ruined fortress in Wales.