Pau is a beautiful city in southwest France, you can overlook the Pyrenees Mountains. The city is very quiet. There is a cliff next to the city, the river flows under the cliff, and there is an elevator to go up and down. From here, the distant mountains are beautiful. The entrance to the town is the history museum. (Musée dHistoire des Baux), Here is a display of historical materials and cultural relics from the castle's heyday. Standing at the top of the castle, you can have a panoramic view of the surrounding ancient city of Yaer. It is said that the Hell Valley in the north is the place where Dante wrote the Divine Comedy Hell. Now the castle has been fought a few times, only a part of its heyday, but the momentum of the wind is awestruck more than a dozen kilometers away.