When the Broad museum in downtown Los Angeles officially opens on Sept. 20, visitors will be treated to a selection of more than 250 works of contemporary art culled from the private collection of founders Eli and Edythe Broad, museum officials will announce on Friday.

Though many of the pieces have been seen in public before, this will be the most in-depth display of art from the 2,000-piece collection, spotlighting more than 60 artists.