Asunción also hosts several symphony orchestras, and ballet, opera and theater companies. The most well known orchestras are the City of Asunción's Symphony Orchestra (OSCA), the National Symphony Orchestra and the Northern University Symphony Orchestra. Among professional ballet companies, most renowned are the Asunción Classic and Modern Municipal Ballet, the National Ballet and the Northern University Ballet. The main opera company is the Northern University Opera Company. A long-standing theater company is Arlequín Theater Foundation's. Traditional venues include the Municipal Theater, the Paraguayan-Japanese Center, the Central Bank's Great Lyric Theater, the Juan de Salazar Cultural Center, the Americas Theater, the Tom Jobim Theater, the Arlequín Theater and the Manzana de la Rivera. Asunción is also the center of Architecture in Paraguay.