Firstly, I want to talk about the floor plan of the museum, when I wander into this museum, I found this museum has a lot of different circulations and symmetry. Why did John design some different routes through this method? This way can avoid congestion of the group and Let the crowd flow through the room. Why symmetry？ Symmetry implies some kind of rule. Why implies rules？If there are no rules，it will be chaotic.
Every room has a different type of skylight. Why designer did that? I think that is because there are no electrical light systems during 1700-1800. Meanwhile，this room without window，there is no natural light. Designer want to made it.
On the basement floor， as we can see there is a Grille skylight overhead. It brings the natural light from the roof. Meanwhile， this structure can provide a stable floor for people safely access it.
Through sky light be lead in.These artworks full of energy of natural.
Window be as a background of artworks on the staircase .Look like a opera stage.