@abc7chicago: A drone show illuminated the skies over New York Harbor Wednesday night as part of a tribute marking the 25th anniversary of the Sept. 11 terror attacks. The artwork, titled "2,977 Lights Over New York Harbor," featured 2,977 lights, one for each person killed in the 9/11 attacks. The lights rose over the harbor before assembling into the outline of the Twin Towers at full architectural scale.