In a land better known for Buddhism and Taoism, this Muslim mosque adds a touch of surprising architecture to Tianjin’s cityscape. Construction began in 1644 under the Qing dynasty. Four main halls (Screen, Front, Praying and Preaching) serve as the mosque’s main structures, all elaborately decorated with colored paintings, Koran scripture carvings, and 61 horizontal plaques and couplets. Entrance, however is difficult, for the mosque still functions as an active house of worship. Visitors are welcome, though, to traipse through the surrounding grounds.