On November 11, 2017, Zhang Gengzhi, an 73-year-old in Chongqing, carved out an old Chongqing city with a 2-meter-wide and 3-meter-long plastic foam. Zhang even said that it was two things that made him sprout an old Chongqing city The idea of a sand table is that one saw a documentary introducing the model museum in Hamburg, Germany and the other visited the 18th Beijing Old Ladder Film Festival. The streets of Old Chongqing were marked with 133 streets, 30 wharfs and 32 At the name of the site. The picture shows the elderly carving tools in the sand table to be modified.

