A recently abandoned psych ward at the end of Sanatorium Road.

See the nearly two-century-old ruins of pre-railroad America at the former site of a lock on the Ohio and Erie Canal.

The oddly shaped, steam-spewing building is now an art studio and gallery.

An architecturally unique lighthouse that had to be lifted up and moved to avoid falling in the sea.

This 19th-century Hamptons windmill was once home to modernist painter Agnes Pelton.

This backwater graveyard in the Hamptons became a trendy burial spot and posthumous status symbol for famous artists.

This abandoned dream castle and its cemetery look out over the city that once inspired their creation.

A natural sandstone bridge hidden in the Sewanee forest.

This picturesque ghost town is located on the banks of the Suwannee River.

The abandoned bathhouse is all that remains of the hot springs considered Florida's original tourist attraction.

This abandoned bridge is now a favorite haunt for graffiti artists.

A rare view of a preserved Victorian science museum.

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

World's first "penitentiary," meant to be humane, drove men insane.

The body of St. John Neumann and his collection of hundreds of relics, on display in a Philly church.

This forgotten building was one of the few Philadelphia-area breweries to survive Prohibition.

A legendary boxing venue and ring featured in Rocky V.

The only remnant of a small mining town is an abandoned railroad tunnel that is steeped in ghostly lore.

An abandoned asylum incorporated into a college campus.

The remains of a massive blast furnace in what was once one of the country's largest iron-producing regions.

This park pays homage to the region's rich industrial history of brick making.

This park and coal mine heritage site is home to two of the last steam winding engines in the UK.

A riverfront park that both remediated and preserved its industrial past.

A park full of outsider art, created by college students studying outsider art.