The oldest bibliophilia club in America, with exhibitions on historic books and graphic arts.

A charming "tea atelier" hidden away in Greenpoint, Brooklyn.

An arcade packed with a rotating collection of unique independent video games.

The oldest house in Manhattan is now a museum that remembers the home's sordid history of scandals, vice-presidents, and ghosts.

This abandoned subway station can still be seen on regular commuter trips.

From scholastic to sepulchral - now under reconstruction.

The remnants of two World's Fairs are here, complete with a 12-story globe, a mini-Manhattan, and a UFO-shaped pavilion.

This semi-hidden Manhattan restaurant is based out of a loading dock.

A dark, dank room in subterranean Manhattan was the site of a ghastly murder.

The loneliest island in New York.

The famous author's cottage hideaway.

The beautiful tunnel that ran from the lobby to Penn Station is still hidden underneath 34th Street.

The walls are decorated with whimsical murals painted by the creator of the Madeline franchise.

Once the tallest building in the world and the site of "the highest dinner ever held in New York" this building now holds the most expensive penthouse in the city.

This empty Victorian manse on Staten Island is said to be haunted but is actually a real life crime scene.

This ruined fort hidden at the top of Central Park can't seem to keep from losing its historical plaques.

The final resting place of the great escape artist, where some still gather to wait for his escape from death.

Tucked away amidst some of the most famous addresses in the world is New York's only fraction of a street.

An unassuming secret door once led to a legendary watering hole.

Love, knishes, and best wishes from this legendary Lower East Side bakery.

One of the last Jazz Age "Wonder Theaters" in New York City.

Behind a bodega is a small museum of relics and ephemera showcasing the history of New York.

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

The world's oldest hologram gallery and the labyrinthine laser laboratory of a holography pioneer.