"Art on theMART" is a digital art display begun in 2018. It provides a 2.5 acre "canvas" (2 football fields) for digital artwork projected on the Chicago River facing facade of the Merchandise Mart. The project is intended to be the largest digital art projection in the world and is scheduled to occur over thirty years with annual showings initially between March and December. In 2019 it was expanded from five nights a week to every night. Displays begin 15 minutes after sunset and loop for two hours. Obscura Digital studio initially installed 34 projection cameras to allow the rotating roster of artists to display their work.