The Broad museum will open Sept. 20 as the downtown showcase for Eli and Edythe Broad's contemporary art collection, the founding couple announced Thursday. As promised, admission will be free. But it'll cost $10 to get a one-day sneak preview Feb. 15.

The opening art display in September will offer an array of greatest hits from the more than 2,000 pieces the Broads have amassed. The show will range through some 60 years of post-World War II art, arranged in "predominantly chronological" order from the 1950s to a recently acquired massive video installation created in 2012.