Hidden deep within New Jersey Pine Barrens is a massive graffiti wonderland.

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

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

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

In the woods of New Jersey lie the ruins of a munitions village abandoned after World War I and the remnants of a 1920s wooden racetrack.

A recently abandoned psych ward at the end of Sanatorium Road.

Once the world's largest reinforced concrete structure, this abandoned bridge now beckons urban explorers.

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

An enormous overgrown greenhouse teeming with graffiti and wildlife.