Moss and stone turn this waterfall into an otherworldly liquid veil.

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

Eclectic collections, artwork, and some feline friends fill the writer's former home.

The remnants of two World's Fairs are here, complete with a 12-story globe, a mini-Manhattan, and a UFO-shaped pavilion.

A theme park that suffered massive flooding during Katrina was abandoned, and now proves irresistible to trespassing explorers.

Home to the infamous "Typhoid Mary" and the worst loss of life in New York's history prior to September 11, 2001.

A crumbling hospital from the 1850s on Roosevelt Island.

A museum devoted to bringing to light forgotten or neglected histories through exhibitions, education and public programming.

A decommissioned military complex that's now a modern industrial park.

In the middle of downtown Brooklyn lies a 165 year old secret hidden right below the surface (closed to the public indefinitely).

This beautiful building in the heart of Manhattan's Financial District was empty for decades.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.