The Cathedral of the Immaculate Conception (colloquially known as the Xuanwumen Church, the South Church, or Nantang) in Beijing posts up characters that read "Merry Christmas" on rooftop to celebrate the Christian festival on Dec.25, 2013. The South Church was founded in 1605, with the assistance by the renowned Italian missionary, Jesuit member Matteo Ricci, making it the oldest Catholic church in Beijing. [Photo by Chen Boyuan / China.org.cn]