The remains of a century-old mansion that met a fiery demise years after it was deserted.

Deep under Manhattan is the largest construction project in city history. So far, the project has taken the lives of 23 workers, or "a man a mile."

Visit the site of a subway powered by nothing more than air--and lots of it.

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

A partially hidden wall graffitied by spectators of the 1976 Bicentennial, recently rediscovered.

Try not to get slimed in Tribeca.

Under a glass sidewalk lie the remains of some of Manhattan's oldest buildings.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

Unusual books about food and drink abound in this 19th-century New York townhouse.

Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

The saddest little diner in New York.

This collection of grinning ephemera has grown from basement to Brooklyn.

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

The remains of a 19th century spring, and the site of an infamous unsolved murder.

These beautiful ruins deep in the Pennsylvania woods are thought to have been a ski lodge or a speakeasy, but no one really knows.

A bronze monument to the infamous radio broadcast in the real New Jersey town where the fictional Martians crash-landed.

The haunting, dilapidated remains of a former poorhouse on Staten Island's Greenbelt.

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

Seven golden statues rise into the sky from sculptor Victor Victori's New Jersey front lawn.

One man's lifelong obsession with death.

A park full of outsider art, created by college students studying outsider art.

This strange, big-tailed beast became a Pennsylvania town's unofficial mascot.

The internal railway of one of the biggest steel plants in America has been transformed into a linear park with unique industrial views.

This disastrous New Jersey safari park saw animal attacks, escapes, and disease before being abandoned.