Marking A Milestone: 4 World Trade Center Opens Designed by architect Fumihiko Maki, 4 World Trade Center is 72 stories high and 2.5 million square feet and features waterfalls, lush trees and blue skies.
Thousands Dedicate 'Empty Sky' Memorial For NJ 9/11 VictimsDesigned by architects Jessica Jamroz and Frederic Schwarz, the memorial's towers are sunk into a berm and divided by a granite walkway that faces on a line to the World Trade Center site across the Hudson River.
2,753 Empty Chairs In Bryant Park Honors Those Who Died On 9/11There is a moving tribute in Bryant Park to honor and remember those lost on Sept. 11th.

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