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

For over 80 years, Mayan ruins stood proudly in a most unlikely location.

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

A band of aerialists and circus performers putting on incredible shows in East Williamsburg.

Lehigh Valley barge No. 79 still gets tugged along - but now it houses a museum and unusual performances.

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

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

A castle built for love, and abandoned due to heartbreak.

Read between the lines of the subway map to find the hidden abandoned Civil War fort.

Whale bones, scrimshaw, and sperm oil make up just a part of this comprehensive collection of whaling history.

These mouldering mansion ruins remember a time when the Catskills were nothing but luxury.

Dedicated to the art and science of glass in equal measure, this space is as much laboratory as museum.

A world of whimsy and wonder aboard a one of a kind historic landmark vessel.

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

Once America's longest-manned military fort, now an abandoned hulk.

A once crucial portion of the Long Island railroad still lays abandoned, waiting to be turned into an urban park.

This throwback amusement park is home to rides and unique storybook figures from the past.

This abandoned subway station beneath the Waldorf-Astoria hotel is allegedly used to secretly transport presidents.

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

This natural rock "church" might not be a proper chapel but that doesn't mean it's not beautiful.

This small road tunnel is the only place where you can cross beneath the Erie Canal.

Hidden in Central Park's Ramble is a troublesome cave buried just beneath the surface.

These World War I shooting range tunnels are now haunted halls of underground graffiti accessed through the roots of a tree.

This stone gatehouse was once the entrance to a historic mountain resort, and it had a cameo in a cheesy cult horror movie.