Designed by John B. Snook, Grand Central Depot opened in 1871 and served three separate rail lines, each independently operated.
Each rail line had its own waiting room.
By 1900, it was known as Grand Central Station.
It was next to the Hotel Manhattan. This photo was taken between 1902 and 1906.
next slide will load in 15 secondsSkip AdSkip AdA 1902 train crash fueled calls for electric trains, which led to the need for an expanded station. The design for Grand Central was selected in 1903. Here, ground is being excavated.
In the meantime, Grand Central Station continued to operate.
This 1912 postcard shows travelers on the ramp leading to the subway. Ramps like this one weave through the current terminal, so getting around with a rolling suitcase is easy.
Grand Central Station was torn down in phases, and replaced with Grand Central Terminal. On February 2, 1913, the new terminal opened.
150,000 people visited on its opening day.
next slide will load in 15 secondsSkip AdSkip AdMounted on the exterior of the terminal, the statue of Mercury, Minerva, and Hercules weighs 1,500 tons and measures 66 feet in length.
During World War II, murals to encourage the purchase of war bonds were installed.
Here's part of a defense bond mural.
And a completed war bond mural, in 1941.
This is the interior of Schrafft's, a store in the terminal, in February 1954.
next slide will load in 15 secondsSkip AdSkip AdIn 1957, the PGM-11 Redstone, an American ballistic missile, was displayed in the terminal.
Grand Central was almost demolished in the late 1960s, but a historic preservation movement, led by Jacqueline Kennedy Onassis, saved the iconic building.
In the 1990s, a massive restoration began, including the repair of the famous starry ceiling, which had suffered from decades of smoke.
An Apple store opened in the terminal in December 2011.
A lot has changed in the past century: There are no more porters outside Grand Central.
next slide will load in 15 secondsSkip AdSkip AdAnd people don't travel with large trunks like these anymore.
But Grand Central is still serving a key role as a transportation hub for New Yorkers and visitors to the Big Apple.
Now see what the future holds for Grand Central.