The largest photo mosaic measured 2,045.39 m² (22,016.39 ft²) and was achieved by DOK Plastic Surgery Hospital (China) in Chongqing, China, on 26 October 2016.
The mosaic consisted of of 29,728 photos and each individual photo was a standard 12 x 10 inches. The attempt lasted for over 8 hours starting from 9 am to 5 pm. Most of photos were uploaded by Chongqing citizens to show their smiles and colorful lives. The mosaic shows the landmark “Liberation Monument” (解放碑) and the Chongqing city symbol (the red and orange Chinese character of 人人重庆 in the mosaic).