This small primate research island is teeming with playing, fighting wild monkeys.

This chapel on a cliff is renowned for its healing powers and was founded on the site of a supposed divine intervention.

The bat-covered home of one of the world's most popular brands of rum is located on a tropical Art Deco campus.

The end of the 4 Line is also the end of the line for 300,000 souls in one of NYC's most illustrious cemeteries.

The home of one of America's most wealthy industrialists is now a historic site that remembers a more decadent time in the country's history.

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

This once-grand marvel of engineering is now 41 miles of scenic hiking trail.

The first pet cemetery in the United States.

Hidden in plain sight on a pair of Manhattan subway tunnels are a pair of public instruments that sing to each other.

There are owls with glowing eyes in Herald Square.

A posh members-only club with a literally dramatic history.

Named the fifth most beautiful building in America in 1885, this former courthouse boasts the best view in the Village.

“Wagon Jobber" turned smokehouse magnate's family-owned business is still going strong 100 years later.

Leaf through over 30,000 artists' sketchbooks in what may be the world's largest collection of doodles

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

A terrific purveyor of natural history objects and curios.

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

Unlock the secrets of the conjuring arts.

A semi-scholarly approach to sex.

Church in Manhattan holds the bloody sock of Padre Pio, among with many other unusual relics.

A good place to research the Freemasons, esoterica, occultism, and hermeticism.

The former hotel where Tesla invented the radio.