Exotic feline breeding compound and conservation center.

A once grand hotel is being retaken by the wilderness it once capitalized on.

Once a mortuary that held the remains of Buffalo Bill, this Denver hotspot is now a death-fixated restaurant.

The world of the ancient Celtic civilization explained through a bewitching 11 acre garden.

The lush coastal city of Astoria is riddled with forgotten secret sidewalks.

This futuristically sylvan church is a glass-enclosed marvel of modern architecture.

Home to the infamous "Typhoid Mary" and the worst loss of life in New York's history prior to September 11, 2001.

An encyclopedic collection of mammal penises.

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

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

A technicolor place of worship for Elevationists.

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

One of Canada's most incredible rare book collections holds hundreds of thousands of gorgeous tomes that the general public can touch.

The hallucinogenic center of the ancient world.

The anatomical-pathological collection of a man who changed surgery.

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

In this cobwebbed old operating theater, you can practically hear the screams of the unanesthetized patients.

A morbid secret lies hidden within the beautiful walls of the Boston Athenaeum.

A state-of-the-art medical facility from the Imperial era is now a derelict ruin.

The name of this famed hospital was once a byword for the horrors of medical and psychiatric care.

This Budapest bar allows drinkers to leave their mark on the walls, floor, and even ceiling.

An abandoned castle owned and ignored by Masons carries a cursed history.

A look into the Church of Scientology's deeply unfavorable view of psychiatry.

This symbolic piece of New Orleans architecture is also home to a few ghastly stories.