This old estate is a remnant of when the Bronx was a popular summer destination for wealthy New Yorkers.

Hundreds of glow-in-the-dark objects light up a museum in a historic zinc mine.

A bizarre house filled with an astounding array of collections.

In the woods of New Jersey lie the ruins of a munitions village abandoned after World War I and the remnants of a 1920s wooden racetrack.

With some 500,000 books across five buildings, this bookstore is a reader's paradise.

A tiny islet just off Long Island offers a wealth of infectious curiosities.

The mysterious headstone of an unidentified bank robber was seen visited, every year, by a woman in black.

The cave where two British judges hid in exile after sentencing the king to death.

House used in the 1971 horror film "Let's Scare Jessica to Death."

Panoramic views of the city of New Haven and the Long Island Sound, with a side of history.

Final resting place of a New Haven urban legend.

While many places make the claim, the Library of Congress says this restaurant is the birthplace of the hamburger.

137 graves holding New England's earliest residents.

An archival collection of over 2,200 case studies which includes human brain specimens and tumor specimens.

A vast collection of rare books, manuscripts & extraordinary objects illustrating the history of medicine.

One of America's oldest private membership libraries was long one of New Haven's best kept secrets.

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

This backwater graveyard in the Hamptons became a trendy burial spot and posthumous status symbol for famous artists.

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

This forgotten graveyard in rural New York State once served a pioneering hospital.