How to improve the attraction of tourist cities

The first is the cleanliness of the environment. I have been to many cities, some of which are provincial capitals, but the dirty, chaotic and depressing urban main colors are very uncomfortable. Some cities are excellent. At the same time, the quality of local residents is very important. One of them is not to be blindly exclusive. This is very intuitive for foreign tourists. I have been to Shanghai twice and don't understand the inexplicable temper of Shanghainese. Many friends around Beijing have similar views. Third, we must have a unique landscape. Which is what others don't have. If there are others, it is only a difference in quantity at best.