MEXICO-MEXICO CITY-CHINA-DIPLOMATIC RELATIONS-STAMPS

(220216) -- MEXICO CITY, Feb. 16, 2022 (Xinhua) -- China's Ambassador to Mexico Zhu Qingqiao (2nd R) attends a ceremony on the issuance of a series of stamps to commemorate the 50th anniversary of the establishment of diplomatic relations between the two countries at the Postal Palace in the historic center of the capital Mexico City, Mexico, Feb. 14, 2022. The stamps showcase two historical and cultural landmarks: the Dengfeng Observatory in China's Henan Province, and the Pyramid of Kukulkan in Chichen Itza, Mexico. (Xinhua/Xin Yuewei)