This hospital fell into ruins after failing to act as the advocate for the mentally ill it was designed to be.

This ominously named New Jersey street seems to be attracting over-the-top legends of its own making.

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

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

Tribute to the famous Notre Dame football coach who died in a plane crash.

Beneath the mossy overgrowth covering this once-sprawling campus lies decades of history and the secrets that come with it.

A long abandoned hospital building on the outskirts of NYC.

This former tuberculosis research hospital endeavored to cure the dreaded disease with fresh air and positive attitudes.

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

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

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.

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

The abandoned ruins of America's first private zoo are open for exploration in the Catskills.

Ruins of a historic medical facility sits eerily by the water.

Once the path of a railway tunnel, now home to thousands of glowing insects.

Medical and zoological curiosities for sale.

Left untouched since a double murder-suicide in the 1960s, Los Feliz murder mansion remains a neighborhood mystery.

A particularly creepy abandoned hospital that sparks interest for lovers of the supernatural.

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

The longest navigable underground river in the United States is home to countless blind and albino animals.

Frank Lloyd Wright's most iconic home dangles over a Pennsylvania waterfall.

This abandoned asylum was once a state of the art facility before devolving into one of the most deadly mental institutions in American history.