The Great Mosque of Xi'an

The Great Mosque of Xi'an is one of the largest premodern mosques in China.: 128  Although the mosque was first built in the year 742 AD during the Tang dynasty, its current form was largely constructed in 1384 AD during Emperor Hongwu's reign of the Ming dynasty, as recorded by the Records of Xi'an Municipality.

An active place of worship within Xi'an Muslim Quarter, this courtyard complex is also a popular tourist site. It now houses more than twenty buildings in its five courtyards, and covers 1.23 hectares.

Source: Wikipedia