This abandoned factory on the Hudson River once churned out a million bricks a week.

The life of one of FDR's possible mistresses is preserved in her palatial Hudson Valley mansion.

What was once a trend-setting, phrase-coining icon of architectural splendor is now a rotting, forgotten hulk.

This sandstone gorge in New York State's Adirondack Mountains is home to waterfalls, flumes, and more.

This natural rock "church" might not be a proper chapel but that doesn't mean it's not beautiful.

The Hudson River School comes alive at this palatial estate.

"A hideous albatross in the Hudson River Valley."

This once-private estate is now a dreamy, meditative garden that's open to the public.

A 19th century hat factory still stands as a crumbling ruin in upstate New York.

This once sprawling resort now sits abandoned, filled with graffiti and vibrant colors from an era long passed.

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

The world’s first penitentiary, meant to be humane, drove men insane.

This tiny New Jersey village has lived many lives but seems determined to remain a ghost town.

A castle inspired by medieval architecture is hidden in the woods of Connecticut.

A ruined mansion hidden in the woods of the Hudson Valley, home of a tragically doomed romance.

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

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