This park is home to a massive bird sanctuary.

A preserved trolley track that was transformed into a museum of transportation.

Visit the grave of America's most prominent paranormal investigators and self-proclaimed demonologists.

Home to the abandoned Tioronda Hat Works Factory, this park is a combination of woodlands and marshlands.

A simple but powerful tribute to the 20 victims of the 1692 witch trials.

The final resting place of a circus performer who went by the pseudonym "General Tom Thumb."

This eclectic homestead is home to a miniature windmill and Connecticut's last tollbooth.

The only surviving building of historic West Boylston, which was flooded to create the Wachusett Reservoir.

The final resting place of President Chester A. Arthur and hundreds of others from Revolutionary War soldiers to poets, politicians, and painters.

Formerly the world's largest, this Willy Wonka-esque contraption runs 24/7.

The remnants of a luxurious resort that saw its peak in the 1970s and 1980s has been abandoned since 2009, leaving behind the wreckage of both the hotel and a beautiful ice skating rink.

Once the largest gravity dam in the world.

After decades of neglect, a brutalist icon is getting new life as an eco-friendly hotel.

A once-booming railroad left abandoned next to the Quinnipiac River marshes now intersects with a hiking trail.

Accessible only by boat, this centuries-old island fort never saw troops or combat.

Abandoned Italianate architecture on the coast of Maine.

The only remaining historic maritime signal station in the United States.

Once the largest public hospital for the mentally ill was also surrounded by controversy.

A beautiful, historic location open to the public.

A human attendant once directed car traffic from this structure before automated stoplights.

An allegedly cursed tree represents a town's reckoning with a racist past.

The only geyser in the state of Pennsylvania is caused by pressure from an abandoned coal mine outside of the ghost town Centralia.

British troops and Prohibition couldn’t stop this spot from becoming one of the United States' oldest continuously-run taverns.

These wire animal sculptures commemorate the exotic inhabitants that once called the Tower of London home.