After weather conditions refused to cooperate on Monday, the final two sections of Freedom Tower have been lifted to the summit of the One World Trade Center. Construction of the gargantuan 758-ton, 408-foot spire - a joint Canadian-U.S. venture - began in December 2012, when 18 separate pieces were shipped to Manhattan from Canada and New Jersey. This final addition, including a steel beacon, means that the height of the building will soon rise from 1,368 feet to a more patriotic 1,776 feet once the segments are permanently installed within the next few weeks. However, it's not yet certain that the building will officially be the tallest in the U.S.
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