Tucked behind New Jersey's abandoned Gingerbread Castle lie the eerie ruins of a once-flourishing paper mill.

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

Several times a year, during low tide, two pairs of historic train tracks are revealed on this New Jersey beach.

One of the world's largest model railroads is a mind-boggling achievement.

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

World War II bunker still standing on the New Jersey beach.

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

This massive boulder is either a unique rock formation created by glacial melt or a magic energy vortex.

One man's lifelong obsession with death.

A reservoir of vintage pinball machines and arcade games for the nostalgic and thrill seeking.

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

This Great Depression-era creation was once known as the strangest house in the world.

This Boy Scout retreat acted as "Friday the 13th"'s original Camp Crystal Lake.

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

Along the Palisades skyline are the ruins of a large mansion built in 1911 and demolished in the 1930s.

The site of one of history's most indelible and horrific tragedies.

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

Once in a state of dilapidation, this candy-inspired fortress is now being revived.

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.

This historic iron-working village is now a ghost town so immaculate that it looks as though it was recently built.

A storefront museum in Asbury Park honoring the Jersey Shore’s deep history of mystery—including the Jersey Devil.

A unique sculpture park that specializes in the huge and bizarre.

Hundreds of glow-in-the-dark objects light up a museum in a historic zinc mine.