The Circle Star Theatre was a performing arts venue in San Carlos, San Mateo County, California. Its name is based on it being a theater in the round, featuring a rotating circular stage with none of its 3,743 seats further than 50 feet (15 m) from the stage. Unlike similar venues across the United States, the Circle Star Theatre stage had the ability to rotate in either direction without limit, thanks to the slip ring and brush system that supplied electrical/audio to and from the stage. The theatre's address was 2 Circle Star Way (1717 (1800?) Industrial Road[1]), San Carlos, CA 94070.