The high line is a place worthy of infinite Call. There are old and used railways transformed into narrow Park walks across Westchelsea, backed by Hudson River, Nice! Take Metro Line 7 to the main station and walk for about 15 minutes to the entrance of the High Line Park. Then walk up a flight of stairs and go straight ahead to the Chelsea Market. The total length is about two to three kilometers, in fact, a curved straight line is very easy to walk. In some places, the railway at that time was retained. We can see the contrast between the old and the new. In this way, besides having a good supplement on the greening, we can also transform the old things into fairly good leisure parks, which can be used as a good textbook. Case study of urban renewal. We can see that the nearby area is developing at a high speed, there are many infrastructure projects, as well as hotel projects are completed, I believe that the next time I come to the park again, there will be some new discoveries. The park can be divided into three parts, one is a sea-side walk, the other is a walk through high-rise buildings, and the last is a recreational area with ice skating rinks and other recreational areas.