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We see them every day in big cities across America, tower cranes. They seem to magically appear in our skyline, one day they are not there and the next they are lifting materials into the sky. They symbolize the building industries ability to build efficiently; more importantly today they are a symbol of the economic recovering going on across the US. In this one piece of footage there are two cranes being used in the background, beside the one being erected in the foreground. This time-lapse video is of a Liebherr 420 ECH tower crane being erected in Ballard Washington.