The Oakland Museum of California (OMCA) is a museum located in Oakland, California that focuses on the art, history, and natural science of California. The museum has a diverse collection that includes works by California artists, as well as historical and cultural artifacts from various groups that have lived in the state. The OMCA also has a number of interactive exhibits and educational programs for visitors of all ages. The museum is located in a building that was designed by architect Kevin Roche and is situated in the heart of Oakland’s cultural district. The OMCA is open to the public Wednesday through Sunday, and admission is free for Oakland residents.