The only structure left with direct ties to the Salem witchcraft trials of 1692.

A memorial marks the library lobby where Langston Hughes' ashes are buried.

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

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

A beautiful, historic location open to the public.

These hooded graves are the only of their kind in the United States.

This island castle contains enough secret passageways to support a season of Scooby-Doo episodes.

A natural gas leak provides a flickering flame beneath a waterfall.

The intriguing personal collection of a professional demon-chaser.

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 empty Victorian manse on Staten Island is said to be haunted but is actually a real life crime scene.

This beautiful building in the heart of Manhattan's Financial District was empty for decades.

This speakeasy continues the Prohibition-era legacy of Harlem's jazzy Swing Street.

Series of storm drains connected to a dark urban legend.

Take a step into the workshop where Edison and his employees revolutionized the world.

Thomas Edison's home and final resting place also boasts an impressive garage, where some of the earliest electric cars are on display.

This abandoned seaside fortress is now simply an imposing ruin being taken back by nature.

A temple belonging to the largest Buddhist order in South Korea nestled in the middle of New York City.

This forlorn park is the result of a failed investment turned tax dodge.

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.

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

This fancifully decorated Victorian home in New York’s Hudson Valley is the only known fully domed octagonal residence in the United States.

Along the Palisades skyline are the ruins of a large mansion built in 1911 and demolished in the 1930s.