On the top floor of an upscale department store stands a lavish restaurant housed in a replica of a luxury French dining car.

A Manhattan office building is home to the world's largest chess board.

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

Hidden in an ordinary Midtown building is a one-room museum dedicated to the greatest escape artist.

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

This unmarked and unloved Manhattan subway grate created one of the most iconic images in American cinema.

A famous songsmith's custom piano, dubbed "High Society," is hidden just out of sight in one of New York's finest hotels.

A self-made museum in Queens, New York continues to display the work of a sculptor known for paving his own way.

Depression-era fun lives on in this Harlem museum dedicated to the sport of the street.

This Wall Street bar was once a hub of revolutionary activity where Washington famously bid farewell to his troops.