Ruins of a once-prized railroad station in New York.

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

Final resting place of two dozen New York City harbor ships.

Toxic waste disaster that founded the Superfund program.

A 19th century hat factory still stands as a crumbling ruin in upstate New York.

This once sprawling resort now sits abandoned, filled with graffiti and vibrant colors from an era long passed.

The most unloved grain elevator in Brooklyn was a “Magnificent Mistake.”

A massive forgotten storehouse from 1913 on the Brooklyn Waterfront has a spectacular view of Brooklyn.

An old abandoned mining town in The Adirondacks where Theodore Roosevelt first learned of the shooting of President William McKinley.

A forsaken wonder in the middle of the East Side neighborhood.

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

This Central New York ghost town was once a prosperous railroad community.

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

In the middle of downtown Brooklyn lies a 165 year old secret hidden right below the surface (closed to the public indefinitely).

What was once a trend-setting, phrase-coining icon of architectural splendor is now a rotting, forgotten hulk.

In upstate New York, gorgeous waterfalls and a watermill are slowly being reclaimed by nature.

The site of a tragic massacre that spawned a multimedia franchise.

Decades after testing the polio vaccine on unwitting patients, this historic mental hospital sits in ruin.

Historical figures from New York City's Catholic community reside in Midtown.

This abandoned subway station can still be seen on regular commuter trips.

Tucked away amidst some of the most famous addresses in the world is New York's only fraction of a street.

The abandoned husk of a mental institution that failed to save a Jazz Age icon still sits nearly unchanged.

The loneliest island in New York.

Lady Liberty's first beacon of enlightenment is now displayed in a museum near the statue.