An ambiguous ambience emanates from this centuries old leprosy quarantine.

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

A number of gruesome unsolved murders have turned this simple home into a morbid tourist trap.

Teeming with illegal goods and services, this towering maze of vice is also a popular tourist accommodation.

Since 1874, this macabre collection has developed into a museum devoted to Scotland Yard's mementos of dastardly deeds.

One part local history, 99 parts gruesome haunted house.

Museum dedicated to the terror regimes of Hungary.

A series of five defunct panopticon prisons in Cuba.

One of Ireland's most infamous prisons for rebels including men, women and children.

Terrifying derelict military hospital once housed a recuperating Hitler.

A crumbling hospital from the 1850s on Roosevelt Island.

Abandoned cemetery of the former Psychiatric Hospital of Volterra.

The deserted remains of a luxury hotel turned hospital ward.

Haunted tuberculosis hospital built by the patients.

A girls' boarding school inspired by the Chicago World's Fair, once abandoned, now restored to strange and scenic glory.

This former tuberculosis research hospital endeavored to cure the dreaded disease with fresh air and positive attitudes.

Former farm staffed by mental patients is now a public park.

This notorious Canadian mental institution was home to some of the first LSD experiments and origin of the word "psychedelic."

Historic psychiatric asylum and most-filmed location in the Great White North.

Beneath the mossy overgrowth covering this once-sprawling campus lies decades of history and the secrets that come with it.

The inspiration for H.P. Lovecraft's horror stories and Batman's Arkham Asylum is now a condominium complex.

An abandoned asylum incorporated into a college campus.

A formerly abandoned mental institute, now back in business.

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