19 Incredible Images Of #PiInTheSky At SXSW

On March 13th, aerial advertising firm AirSign brought artist ISHKY's art to life in a stunning, coordinated performance by 5 pilots who circled the Austin area writing out the numerical representation of Pi. Here are 19 incredible images under the hashtag #PiInTheSky

BEARvsSHARK • 4 years ago