A deteriorating 1990s Girl Scout camp in a beautiful lush park on Lake Ontario.

The ruins of this long-abandoned unsuccessful gold mine can still be found.

This old cement mine has been used as everything from a mushroom farm to a recording studio.

An abandoned asylum where patients have been forgotten but their possessions remain.

The tragic reality of a town riddled with rumors of haunts, chemical spills, and serial killers.

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

A short hike into the mountainside forest reveals a decaying 1890s town.

An abandoned 1920s school with a mysterious history.

This abandoned psychiatric hospital once housed more than 4,000 patients in the middle of a quaint New England town.

The remains of a deserted 1800s farming community can be found in Little River State Park.

The abandoned grounds and derelict greenhouses of this once-magnificent Edwardian estate are now a nature preserve open for exploration.

Ruins of the elaborate house where the enigmatic costume designer threw glamorous parties for New York's theatrical elite.

One of the largest-ever mental hospitals now sits abandoned, surrounded by 25,000 unmarked graves.

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.

The old Route 66 town straddling Texas and New Mexico died along with the Main Street of America.

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

The eerie ruins of an isolated abandoned town nicknamed "the Widowmaker" for its deadly gold mine.

The overgrown ruins of a once thriving World War I-era copper mine.

The abandoned train depot now doubles as a well-placed rest stop for those who take the road less traveled.

A mine fire has been burning under the deserted town since 1962, but this church is still going strong.

Hundreds of numbered stakes hidden in the woods mark the graves of the lost souls of a nearby asylum.

This dam in the woods, built by Henry Ford with only manpower and oxen, holds no water and serves no purpose.

An enormous overgrown greenhouse teeming with graffiti and wildlife.

The eerie ruins of a remote abandoned hamlet said to be founded by the survivors of a shipwreck.