The Center for Holographic Arts presents "Uncertain Worlds," an exhibit of installations by Philippe Boissonnet over the last 20 years.

An opening at the Clock Tower building in Long Island City, at 29-27 41st Ave., will be held on Friday, March 7 from 6 to 10 p.m. The exhibit will be on view on Fridays and Saturdays between 2 and 6 p.m. until May 3.