Grand Central Terminal opened at midnight on Feb. 1, 1913, instantly becoming New York City's largest transportation hub and one its most iconic buildings. The building in Midtown Manhattan cost $80 million to construct and sits on nearly 70 acres, two and a half times the size of nearby Pennsylvania station. It connects commuters with the Metro-North Railroad and the subway, and a mega-project is underway now to add Long Island Rail Railroad to that list.
Officials are celebrating the terminal's 100th birthday today with cake, a new museum exhibit, performances and celebrity appearances.
Click through to see iconic historical photos of the station, as it celebrates its 100th anniversary.