Photo taken on June 23, 2021 shows the commemorative stamps of the venues of the Beijing 2022 Olympic Winter Games released at the National Speed Skating Oval in Beijing, China. The organizing committee for the Beijing 2022 Olympic and Paralympic Winter Games (BOCOG) and China Post issued four stamps and a miniature sheet themed on Beijing 2022 venues here on Wednesday. (Xinhua/Ju Huanzong)
