A long-abandoned provincial prison left to crumble in the frigid air of Ontario.

The "birthplace of insulin," where Sir Frederick Banting realized the hormone could save the lives of Type 1 diabetics.

The ruins of a rehabilitation center for World War II vets can be found in the Westminster Ponds Conservation area.

One of the largest-ever mental hospitals now sits abandoned, surrounded by 25,000 unmarked graves.

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

A former mental hospital founded in the 1930s by a eugenicist who advocated for the forced sterilization of patients.

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

Clusters of abandoned buildings hint at the facility's 144-year history with psychiatric health.

The ruins of a Massachusetts prison farm can still be found crumbling the woods of a state park.

This mouldering abandoned mental hospital was once a center for progressive healing.

These beautiful ruins deep in the Pennsylvania woods are thought to have been a ski lodge or a speakeasy, but no one really knows.

This former theme park in New York's Adirondack Mountains fell into ruin before being resurrected as a state-run campground

This Central New York ghost town was once a prosperous railroad community.

This abandoned Poconos resort is haunted by a history of kitschy romance and a violent fugitive.

A crumbling hospital from the 1850s on Roosevelt Island.

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

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

This once luxurious Catskills resort is now a haunting ruin.

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

The remains of a failed subway in upstate New York is now an underground graffiti bunker.