Zhangbi Castle, if only in the village around, do not need tickets, if you want to go to the tunnel, then you have to buy tickets. The tunnel is very long, with three floors, drainage, rooms for generals and soldiers, and the worst is the stables. It's too strong. Tunnel is not high, height of 1.8 meters to pay attention to bow, I went home to find that the scalp is mud, washed for a long time, depressed. There is no obvious sign in the tunnel. It needs to be chosen by oneself. It's very troublesome. In the middle, we have to go out and come in again. It's a special test of patience. In fact, the buildings in the village are beautiful, antique and suitable for photography.