Bill Brand’s trippy “Masstransciscope” was installed in 1980 in the now-abandoned Myrtle Ave station on the B and Q lines.
It was restored in 2008, and is now visible from Manhattan–bound express trains as they leave the DeKalb Ave platform. Based on a zoetrope (a 19th-century optical toy), the piece consists of 228 panels that create a moving picture visible from the passing train. B, Q to DeKalb Ave