Retribution for death of infamous mob boss Franie Yale was a case of mistaken identity.

A mosaic made of materials gathered from this Brooklyn community adorns the walls of this tunnel.

The mass grave of a heroic Revolutionary War regiment sits below an empty lot near the Gowanus Canal.

Hidden in plain sight on the Hudson River is an abandoned train station where nature has taken over.

In its day this historic fort held 100 cannons pointed in almost every direction to protect New York.

Lie in a hammock where George Washington stood.

A way to take your secrets to someone else's grave.

One of only two remaining Victorian-era greenhouses in New York.

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

Take in a rare, face-to-face glimpse of Lady Liberty at this tucked away Red Hook park.

The humble fort that saved Washington.

Now abandoned, the first public health hospital in the U.S. saw more than one million immigrants from around the world.

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

This seemingly unremarkable boulder is said to bear the hoofprint of the devil himself.

I fought the law and the precinct caved in.

Rusting away on the edge of New Jersey are the remains of a Cold War missile launch site.

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

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

The creek where a shark wreaked terror upon New Jersey, and served as the inspiration for "Jaws."

The final resting place of a famous 19th-century murder victim whose identity is still a mystery.

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

Just your average Marie Antoinette–themed speakeasy in an abandoned 19th-century subway tunnel.

A crumbling hospital from the 1850s on Roosevelt Island.

Magnificent New Deal Murals evoke a time when New York City harbor was one of the world's greatest and busiest ports.