The National September 11 Memorial in New York City will open to the public next month, on the tenth anniversary of the 9/11 terror attacks. This time-lapse video from NBC New York condenses seven years of construction, from 2004 to 2011, done at the site into a 90 second time-lapse clip.
View more videos at: http://www.nbcnewyork.com.
Via NBC NY.
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