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

Relics given to a Manhattan church to avoid seizure by the Italian government.

Touching mementoes from those who didn't make it back from World War I still hang in one of New York's oldest bars.

Hidden in one of New York's oldest subway stations is the final remnant of the site of the bizarre Shakespeare Riots.

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

A former insane asylum despised by Nelly Bly and Charles Dickens is now fashionable apartments.

In the middle of downtown Brooklyn lies a 165 year old secret hidden right below the surface (closed to the public indefinitely).

A whimsical, but often overlooked clock in Park Avenue.

The rough and tumble president's childhood home displays the shirt he was once shot in and the speech that saved him.

The former hotel where Tesla invented the radio.

An oasis of calm amid the chaos of the boardwalk, the museum traces the heritage of this beloved beachside amusement park.

Hear the tales of New York's most notorious criminals.

You can still ride this 100-year-old work of art in Brooklyn's largest public park.

The New York hotel where tragic visionary Nikola Tesla spent his final hours, destitute and alone but for the pigeons.

Cryptic messages embedded in the New York City sidewalk.

Everyone from Mark Twain to Teddy Roosevelt has a pipe hanging from the walls of this historic chophouse.

Visit the monolithic tomb of America's most famous general.

This innocent-looking townhome is actually a subway exit.

Built as a gift to the hottest tastemaker of the time, these hidden quarters remain an Art Deco showpiece.

A clock set into the concrete outside a Manhattan jeweler has been telling time underfoot for over a century.

Spinning silently in the lobby of an Art Deco masterwork is a massive vintage model of the Earth.

Manhattan's lighthouse, erected at the insistence of the unsinkable Molly Brown.

A WWI fighter plane and turn-of-the-century penny candy shop are among the unexpected features of this Financial District building.

Lie in a hammock where George Washington stood.