Built with a McKim, Mead & White pedigree, and occupied in the '70s by curator Alanna Heiss, who would go on to found P.S.1 Contemporary Art Center, the Clocktower has street cred to spare within the artistic community. Now the home of AIR (Art International Radio), the gallery space is once again open to the public for visual-art exhibitions. The current show includes site-specific installations by Mary Heilmann, Tony Oursler, Todd Eberle, and Sabina Streeter. Tony Oursler has created Five Take Radius, a "talking lights" installation located along the entrance corridor over Mary Heilmann's floor painting, which resembles a displaced highway. In an alcove leading to the bell tower, Sabina Streeter's mixed-media installation combines propaganda images with raw industrial materials as a commentary on state-controlled communication, while Todd Eberle's photography series Hi-Fi depicts vintage audio equipment, a fitting prelude to the space's current incarnation as a radio station.