Shanghai's largest and most active mosque dates from 1917, though the current reconstruction is from 1925. Its main prayer hall can hold several hundred worshippers (restricted to Muslim males only). There is a separate worship hall for women. The courtyard contains a minaret (for calls to prayer). Shanghai's other mosque that welcomes foreign visitors is the Songjiang Mosque (Songjiang Qingzhensi), located in the southwest suburb of Songjiang (tel. 021/5782-3684). Shanghai's oldest mosque (1870) is at Fuyou Lu 378.