largest firework show in.
1 NEW YORK: The 39th annual Macy's Firework Show over the East River will last for 25 minutes and draw a crowd of over 3 million spectators. As the biggest firework display in the US, this year's show features more than 50,000 effects. 2  WASHINGTON, DC: Lasting over 17 minutes, this show is among the largest in the US.