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

The decaying ruins of Wales' first asylum for the mentally ill.

A long abandoned hospital building on the outskirts of NYC.

This real life asylum of horrors is now an abandoned ruin that hides the unbreakable code to one patient's insanity.

Decades after testing the polio vaccine on unwitting patients, this historic mental hospital sits in ruin.

Unlike other abandoned asylums this empty institution welcomes visitors, just don't go in the buildings.

Once a place of peaceful repose, this sanitarium now faces an uncertain future.

An abandoned asylum once on the cutting edge of lobotomies may be reborn as a Christian college.

The abandoned hospital whose elaborate ghost stories cover up the dirty truth - an uneventful sanitation issue and other mundane reasons for its demise.

The abandoned husk of a mental institution that failed to save a Jazz Age icon still sits nearly unchanged.

An abandoned asylum where patients have been forgotten but their possessions remain.

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

This abandoned asylum in Wales might look haunted, but it's still beautiful.

An abandoned asylum incorporated into a college campus.

This abandoned asylum was once a state of the art facility before devolving into one of the most deadly mental institutions in American history.

One of Frank Lloyd Wright's final works was this UFO church.

The remains of a Rockefeller's lush Italianate estate hidden in the underbrush on the coast of Lake Michigan.

Medical museum focused on antique anesthesiology equipment.

This abandoned Abraham Lincoln statue has also earned the honorary of "World's Ugliest."

One of the most powerful computers in the world can be visited by anyone who wants to experience more computing than they can handle.

Urban explorers embraced America's now demolished first suburban mall, south of Chicago.

The history of funerals and funerary customs.

A theater sits abandoned on Roosevelt Road, once majestic in splendor, now majestic in decay.

Once known as the Illinois Asylum for the Incurable Insane.