Combined image taken with a drone on Sept. 25, 2017 (Top) shows a damaged building in Pestalozzi street after an earthquake, and on Sept. 19, 2018 (Bottom) shows the same damaged building during the commemoration of the first anniversary of the 7.1-magnitude earthquake of Sept. 19, 2017, in Mexico City, capital of Mexico. (Xinhua/Cesar Vicuna)
