Claim: Completed in 1870, Khotan Mosque is in a town in Western China.
Evidence: Khotan Mosque (Chinese: 和田清真寺; pinyin: Hé Tián Qīng Zhēn Sì) is a mosque in Khotan, Xinjiang, China. Hotan (also known as Gosthana, Gaustana, Godana, Godaniya, Khotan, Hetian, Hotien) is a major oasis town in southwestern Xinjiang, an autonomous region in Western China. It was built in 1870 and its patron is Habibullah Khan, the ruler of the temporary Khotan Khanate. 
مسجد خوتان
Khotan Mosque Khotan, Xinjiang, China 1870