The graveyard holds the remains of Irish immigrants who arrived in Queens after fleeing the Great Famine.

Little Red Lighthouse under the George Washington Bridge.

Hordes of precariously balanced stone figures crowd the shores of the Hudson River.

The oldest surviving bridge in New York City, which reopened to pedestrians in 2015.

A riverfront park that both remediated and preserved its industrial past.

Four cars from the old system were once on display, but were removed in 2014.

Lehigh Valley barge No. 79 still gets tugged along - but now it houses a museum and unusual performances.

Once home to the country's most gargantuan ships, this graving dock now waits for people to buy furniture.

The highest rapid transit station in the world.

Empty, but not abandoned, this cavernous Brooklyn loading dock was once considered the largest individual building in the world.

The flagship building of an early national restaurant chain is a superb example of terra cotta art.

This outdoor gallery of graffiti-covered walls pays homage to the past, present, and possible future of street art.

One of the most enjoyable bits of history at Coney Island and “the most romantic ride in the world.”

This Queens hospital has stood abandoned for almost 20 years after its patients were secretly relocated in the dead of night.

A former seaside jewel built for the everyman is now simply a neglected art deco fortress.

Read between the lines of the subway map to find the hidden abandoned Civil War fort.

No monkeying around, this fountain was really named after the classic sci-fi film.

This forgotten graveyard in rural New York State once served a pioneering hospital.

Beneath the mossy overgrowth covering this once-sprawling campus lies decades of history and the secrets that come with it.

A formerly abandoned mental institute, now back in business.

The awe-inspiring ship from the golden era of cruising has an incomparable history and a reputation as one of the world’s most haunted places.

This tiny cottage surrounded by railroads is the oldest surviving structure in Fairmount Park.

This Philly cemetery is the eternal home of many famous area residents, including Rocky Balboa's wife.

World's first "penitentiary," meant to be humane, drove men insane.