The University of Oxford is the oldest English-speaking university, teaching around 19,000 students annually. The Oxford Town Hall is located in the city center and serves as the local government meeting place. The New Theatre Oxford is the main commercial theater in Oxford, England, able to seat 1,800 people. St. Mary's was once the center of university life, housing the library and treasury. The Museum of Oxford covers the history of Oxford City and University through original artifacts, treasures from colleges, and reconstructed period rooms from prehistoric times to present.