World Trade Center under construction, circa 1970. (Hulton Archive/Getty Images)
World Trade Center under construction, circa 1970. (Hulton Archive/Getty Images)
Gothamist
Slide 2 of 16
World Trade Center pavilion at the 1939 World's Fair, Wurt Bros. <a href="http://collections.mcny.org/Collection/%5BWorld%20Trade%20Center,%20New%20York%20World's%20Fair.%5D-24UAKVVOCRS.html">Museum of the City of New York</a>, X2010.7.1.15496
World Trade Center pavilion at the 1939 World's Fair, Wurt Bros. <a href="http://collections.mcny.org/Collection/%5BWorld%20Trade%20Center,%20New%20York%20World's%20Fair.%5D-24UAKVVOCRS.html">Museum of the City of New York</a>, X2010.7.1.15496
Gothamist
Slide 3 of 16
Looking east along Cortlandt Street in the neighborhood known as Radio Row, circa 1930s. (Hulton Archive/Getty Images)
Looking east along Cortlandt Street in the neighborhood known as Radio Row, circa 1930s. (Hulton Archive/Getty Images)
Gothamist
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Slide 4 of 16
Kangaroo cranes in position at the excavation site for the World Trade Center, 1968. (Hulton Archive/Getty Images)
Kangaroo cranes in position at the excavation site for the World Trade Center, 1968. (Hulton Archive/Getty Images)
Gothamist
Slide 5 of 16
The north tower under construction, circa 1969. (Hulton Archive/Getty Images)
The north tower under construction, circa 1969. (Hulton Archive/Getty Images)
Gothamist
Slide 6 of 16
Sign announcing World Trade Center completion schedule, circa 1969. (Hulton Archive/Getty Images)
Sign announcing World Trade Center completion schedule, circa 1969. (Hulton Archive/Getty Images)
Gothamist
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Slide 7 of 16
Rooftop view of the construction site, circa 1970. (Hulton Archive/Getty Images)
Rooftop view of the construction site, circa 1970. (Hulton Archive/Getty Images)
Gothamist
Slide 8 of 16
Twin Towers under construction. (Hulton Archive/Getty Images)
Twin Towers under construction. (Hulton Archive/Getty Images)
Gothamist
Slide 9 of 16
Worker atop the Twin Towers during construction, 1971. (Hulton Archive/Getty Images)
Worker atop the Twin Towers during construction, 1971. (Hulton Archive/Getty Images)
Gothamist
Slide 10 of 16
Worm's eye view of the Twin Towers, 1971. (Hulton Archive/Getty Images)
Worm's eye view of the Twin Towers, 1971. (Hulton Archive/Getty Images)