I started searching for 3d models corresponding to the three places I had researched. The main softwares I used in this part was Quixel Bridge and Taobao (Taobao is a Chinese online shopping software, similar to Amazon, but you can buy almost everything on it). Quixel Bridge Mainly used to download some texture maps and some scanned models, and I bought 3d models of the main buildings on Taobao. However, the 3d models I bought on Taobao were not always in unity format（Most of them were 3dmax source files）, so this caused me a lot of trouble later on.
