Chengdu's largest Catholic church, the Bishop's Mansion of Chengdu Diocese. When my friend took me there was a Sunday noon singing event inside, which was fortunate. In front of the church is a Western-style church with a bit of Byzantine style, and behind is a Chinese-style courtyard. When you see the Chinese-style couplets, two little angels refer to the four words "All the True Sources", and you really feel the combination of Chinese and Western.