Hidden in plain sight on the Hudson River is an abandoned train station where nature has taken over.

From scholastic to sepulchral - now under reconstruction.

Abandoned 19th century homes once occupied by naval officers, soon to be demolished.

Elevated freight railway turned wildly successful urban park.

A once grand hotel is being retaken by the wilderness it once capitalized on.

Underground tunnels remain beneath this abandoned mental asylum.

The phone booths of New York City have all but disappeared, but their remains were once found in this "graveyard," sadly now removed as well.

The feral felines of Roosevelt Island have a small army of allies and an abandoned hospital all to themselves.

The loneliest island in New York.

The saddest little diner in New York.

This derelict building used to house infirm Freemasons, their widows, and orphans.

Reclaimed by nature, the ruins of Doodletown, New York are remnants of a town consumed by a state park.

Tucked in the back of this amazing antique store is an important piece of medical history.

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