The graffitied ruins stand hidden within the Pennsylvania woods.

The New York hotel where tragic visionary Nikola Tesla spent his final hours, destitute and alone but for the pigeons.

An abandoned Depression-era zoo hidden just off the highway.

A lone tower rises above the cliffs in a city park, offering fantastic views of the Connecticut landscape.

The remnants of a 19th-century ironmaking complex hidden in the woods of Connecticut.

The "possessed" house that inspired "The Haunting in Connecticut" book and movie.

This little-known Revolutionary War fort is supposedly haunted by the ghosts of its past.

North America's oldest quarantine facility was built in response to Philadelphia's 1793 yellow fever outbreak.

Unlock the secrets of the conjuring arts.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

Designed by famed 20th-century architect Cass Gilbert, the future of this abandoned 1908 rail station is currently in limbo.

This semi-spooky remnant of an abandoned hotel provides fantastic views.

These mouldering mansion ruins remember a time when the Catskills were nothing but luxury.

Franciscan monks created a facsimile of the Holy Land for North Americans who couldn’t afford the trip overseas.

This old cement mine has been used as everything from a mushroom farm to a recording studio.

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

This giant rock arrived at this quiet park thousands of years ago on the back of a massive glacier.

The home of one of America's most wealthy industrialists is now a historic site that remembers a more decadent time in the country's history.

The real-life site of Ichabod Crane's infamous gourd attack.

Oldest existing church in New York and the inspiration for Washington Irving's "The Legend of Sleepy Hollow."

Hundreds of numbered stakes hidden in the woods mark the graves of the lost souls of a nearby asylum.

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

Haunted Victorian house that inspired a legendary "Ghostbusters" court ruling.

A historic Black graveyard hidden in the parking lot of one of America's largest malls.