This educational institution and reference library specialize in the psychic arts and mediumship.

This small museum in a former church crypt contains artifacts of the Elephant Man, Jack the Ripper and Florence Nightingale.

Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.

An incarceration museum on the spot of possibly the oldest prison in England.

Rebuilt remains of a temple to Roman god Mithras.

A subterranean ice warehouse that has lain hidden beneath central London for over a century is now open to the public.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

This hidden alley near the location of Rome's first theater was the site of a curious miracle.

A modern sliver of architecture in Roma.

Medieval torture techniques with a modern conscience.

An Italian ghost town that fought obscurity, until a mysterious illness brought it to its knees.

The remains of a town so thoroughly destroyed by French forces that the citizens simply left.

Where Aleister Crowley taught magick in "La Chambre Des Cauchemars," his "Chamber of Nightmares."

Dug as a secret royal escape route, the tunnel became a wartime bomb shelter and dumping ground for vintage cars.

Eco-village hidden in the foothills of the Alps that created a massive system of psychedelic underground temples.

The plague quarantine island home to the alleged "Vampire of Venice."

Crushed coral and crystals give the sand its signature coloration.

The location of the last witch trials of Italy, known as "The Salem of Europe."

Abandoned medieval hill town.

Jesus' footprints and the first catacombs in the world.

The final resting place of the poets Shelley and Keats.

Venice's "Island of the Mad."

The glowing blue Nymphaeum of Emperor Tiberius.

The doodles of a genius line the walls of a secret room under the Medici Chapel, where they were hidden for nearly 500 years.