A file photo is put to match the real scene of the building of the Shanghai Post Office, which is a post museum now, in Shanghai, east China, May 24, 2016. The post office was built in 1924. Great changes have taken place in Shanghai, where the Communist Party of China (CPC) was founded in 1921. This year marks the 95th anniversary of the founding of the CPC. (Photo/Xinhua)
