Buying a ticket is a city wall, left over from ancient times, some of the allusions are forgotten, and those who are interested can check it online. After climbing the city wall, you can't take the ring line, but a long distance on the square side, the distance is not too close, after all, it is a small city. There was a place in the middle where I needed to buy a ticket to enter, and I was not very interested in it, so I didn't go in. In the walls, I could see the appearance of the whole city, and my chest was a little widened when I looked out.