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

This abandoned seaside fortress is now simply an imposing ruin being taken back by nature.

Series of storm drains connected to a dark urban legend.

A religious-themed park filled with folk art to bring biblical stories to life that fell into disrepair and now being restored.

Once in a state of dilapidation, this candy-inspired fortress is now being revived.

Along the Palisades skyline are the ruins of a large mansion built in 1911 and demolished in the 1930s.

This dilapidated castle-like structure overlooks the Hudson River at one of its widest points and was once home to nuns.

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

Oldest existing church in New York and the inspiration for Washington Irving's "The Legend of Sleepy Hollow."