The site is just underground at the main entrance of the IFS, and people rush past, and few people pay attention to the Millennium site under the glass floor at the entrance of the bustling supermall. It is the base of streets, ditches and houses in the Tang and Song Dynasty, and is a key cultural relics protection unit in the country. From these thousand-year sites, it can also be seen that this area of Chunxi Road has been a bustling place since ancient times.