Revolutionary War casualties fill the only 17th century structure remaining in Manhattan.

This abandoned cemetery is crumbling into ruin, exposing the artifacts and bodies buried there.

This outpost of America's most popular fast-food restaurant is housed inside a palatial mansion.

19th century cemetery hidden in Brooklyn's Prospect Park.

Records of the dead describe the myriad odd ways people used to die.

This derelict building used to house infirm Freemasons, their widows, and orphans.

A once crucial portion of the Long Island railroad still lays abandoned, waiting to be turned into an urban park.

Holding the most bodies of any cemetery in the United States.

An abandoned 19th century quarry in the middle of the woods, remade by unnamed wanderers into a massive series of rock thrones.

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

A formerly abandoned mental institute, now back in business.

These World War I shooting range tunnels are now haunted halls of underground graffiti accessed through the roots of a tree.

A deteriorating 1990s Girl Scout camp in a beautiful lush park on Lake Ontario.

The only intersection in America where the buildings on all four corners were built pre-Revolutionary War.

A curious friendship between two inanimate ladies.

A Manhattan Episcopal church with an eerie underground crypt.

"A hideous albatross in the Hudson River Valley."

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

A castle built for love, and abandoned due to heartbreak.

The site of the deadly Triangle Shirtwaist Factory Fire.

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

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

Town full of spiritualists, some of whom are mediums, is still in full swing after 130 years.

Home on the Hillside, and home of the first breakfast cereal.