Shampooburg is the largest and most magnificent castle in the Loire Valley Castle Group, which is regarded as a national treasure by the French. Because the castle is a little far from Paris, we choose a chartered car to go to the castle. When we get to the castle, we feel that the surrounding area is very large. It is said to be a hunting area. The Castle enters from the main entrance, but the language interpreter is charged. After entering the castle, we are facing the famous "double-spiral ladder". The two groups of independent staircases are interlaced around a common axis, spirally hovering upward. Individuals go up and down stairs at the same time. They can see each other, but they can't meet each other. It is said that in order to avoid the embarrassment and disputes caused by the meeting between the queen and his mistress, the king specially invited Da Vinci to design a curious and magical tower terrace in Shampoo Fort, which was the place where the king and the royal nobles enjoyed the garden scenery and competitive performances. Up to the top of the tower, you can have a panoramic view of the surrounding scenery, the hunting forest area of Shambourg, and the Loire River. There are several catering areas in the castle. When you are hungry at noon, you can choose to replenish your energy here and visit the next scenic spot.