This old mill and former police station now present a world-class collection of Orthodox iconography.

Books bound in human skin and H. P. Lovecraft's letters are among a few of the treasures this library has to offer.

Last residence of H.P. Lovecraft featured in his story "The Haunter of the Dark."

A ruined mansion hidden in the woods of the Hudson Valley, home of a tragically doomed romance.

This abandoned factory on the Hudson River once churned out a million bricks a week.

This abandoned ironworks was once the most important military supplier in America.

This abandoned cemetery is crumbling into ruin, exposing the artifacts and bodies buried there.

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

The life of one of FDR's possible mistresses is preserved in her palatial Hudson Valley mansion.

What was once a trend-setting, phrase-coining icon of architectural splendor is now a rotting, forgotten hulk.

"A hideous albatross in the Hudson River Valley."

One of America's first spies started out as a teacher in this little red one-room schoolhouse.

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

A living antique aviation museum in the historic town of Red Hook, New York.

Mass Grave of 48 colonists killed in a raid by Native Americans and the French in 1704.

The final resting place of New England's last "vampire."

Forgotten under the construction of a new urban roadway is a small, abandoned part of town.

250-year-old farm now features sculptures, a petting zoo and a hippy-bazaar.

An Escher-inspired library dedicated to the wonders of the human mind, yet closed to the public.

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

This fairy tale-themed amusement park is now abandoned, and childhood metaphors abound.

A distillery built on (and above!) mobster Dutch Schultz's Prohibition-era underground moonshine business.

A former poultry store that looks like a giant duck and is one of the "seven wonders" of Long Island.

This decrepit abandoned building is made all the more eerie by its dark history.