The Yorkshire Wall is nearly 5 kilometers long, almost encircling the Old City of Yorkshire. It was first built by the Romans. Most of the remaining walls were rebuilt from the 12th to the 14th centuries. It is the longest and best preserved medieval wall in Britain. The gates of the walls are called "Bar". The large gates include Bootham Bar in the north, Micklegate Bar in the southwest, Monk Bar in the northeast and Walmgate Bar in the southeast. The Old Wall of York is the longest and most complete wall in England. You can see it when you leave the railway station. You can walk through the wall for 10 minutes to the Yorkshire Cathedral. If you don't have enough time to visit, you can only walk for a short period of time. There are still more entrances and exits. There are also many entrances and exits near the cathedral. If you have plenty of time, you can walk around the city wall and visit York on the city wall. It's also very tasty. The wall is less than ten meters high and can be accessed free of charge. There was nobody on the wall. Looking out from one battlement after another, there are endless streets.