After months of planning, 2,977 drones took flight to put the Twin Towers back in the New York City Skyline in a poignant 9/11 tribute

Ahead of the 25th anniversary of 9/11, 2,977 drones put the World Trade Center back into the New York City skyline. The drones recreated a 1:1 scale replica of the Twin Towers, ma ...

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