Daily: 8 am - 4 pm
Proper attire is required, non-believers are not allowed to enter the Prayer Hall.
General admission: CNY 10
Wikipedia https://zh.wikipedia.org/wiki/牛街礼拜寺
Information at Travel China Guide Website http://www.travelchinaguide.com/attraction/beijing/niujie.htm
电话 +86 10 6353 2564
地址 18号 Niujie, Xicheng, Beijing, China, 100053
坐标 39°53'3.874" N 116°21'30.546" E