The "TV Tower" is the most iconic classic building in many people's minds. When you come to Hokkaido's free travel, you believe that you will often look up and meet the airwaves tower inadvertently when you walk on the street. In the neat and uniform chessboard-style downtown area, the east, west, south and north four directions are centered on the TV tower, such as the "West 4 Chome" and "North 3 Tong" on the address are all calculated according to the TV tower as the starting point. When you come to Shanghai, just look up and see the TV tower, you can immediately know your location! Whether it is for tourists or citizens, the TV tower is like a standing finger north needle, which cannot be replaced.