A tiny museum housed in a New York freight elevator specializes in the "overlooked, dismissed, or ignored."

A crumbling hospital from the 1850s on Roosevelt Island.

This nostalgic blast from the grooming past is also a working barbershop.

The abandoned husk of a mental institution that failed to save a Jazz Age icon still sits nearly unchanged.

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

This mouldering abandoned mental hospital was once a center for progressive healing.

This abandoned factory on the Hudson River once churned out a million bricks a week.

A 19th century hat factory still stands as a crumbling ruin in upstate New York.

Collapsing castle on the Hudson river was once the storage site of military surplus business.

Cleveland's giant "free" stamp is a nod to the Civil War, but was misinterpreted for years.

This once luxurious Catskills resort is now a haunting ruin.

This Central New York ghost town was once a prosperous railroad community.

An abandoned castle owned and ignored by Masons carries a cursed history.

A collection of haunted artifacts chronicles the career of the world's most famous paranormal investigators.

The only American museum exclusively dedicated to the exhibition of gloves.

Discovered by cows, these upstate New York show caves are presented with a healthy dose of psychedelic folk art.

Run by a eugenics advocate, this aging institution conducted secret radiation experiments sponsored by Quaker Oats.

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

These expertly crafted, scientifically accurate glass sea creatures were once an international phenomenon.

The library of every book lover's dreams.

Carved, egg-shaped stone with no explanation.

The 100-year-old public collection of a New Hampshire dentist that contains taxidermy, Native American artifacts, and a pair of mummy hands.

The largest arcade museum in the world chronicles the golden age of video games which ended promptly in 1987.

The place where the great marine explorer first learned to work underwater is not where you'd expect.