This once luxurious Catskills resort is now a haunting ruin.

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

A living antique aviation museum in the historic town of Red Hook, New York.

Collapsing castle on the Hudson river was once the storage site of military surplus business.

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

This rural community has attracted both scientists and techno-refugees due to its federally-mandated lack of technology.

The world's largest fully steerable radio telescope.

Take a steam-powered ride straight out of the past on this Appalachian rail line.

One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

Hikers can still stroll beneath the long conveyer of this abandoned mining facility hidden in a West Virginia river gorge.

Once connected to the outside world by a single train track, this ghost town is looked after by the National Park Service.

Ruins of the elaborate house where the enigmatic costume designer threw glamorous parties for New York's theatrical elite.

A wunderkammer hidden on the top floor of the Hartford statehouse.

The oldest place in Hartford is a cemetery with thousands of bodies stacked beneath the grass.

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

The largest collection of Indigenous Australian artifacts in the world, and the rare museum where wood-and-glass cabinets have trumped interactive exhibits.

How did the right arm of a 13th-century English bishop wind up in a Connecticut church?

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

A sewing machine tycoon built this miniature castle for the people and to beautify a lakeshore.

This abandoned ironworks was once the most important military supplier in America.

The headquarters of the famous Yale society.

Yale University's home for rare works, including the mysterious Voynich Manuscript.

An extra-wide chair built to accommodate the former president's big behind.

137 graves holding New England's earliest residents.