There is a problem I often find with museums: size. They are either too big and overwhelming, making it impossible to see everything in one trip. Let alone actually take in the experience of what you have seen. Or they are too small or simply provide art from one particular niche.
When visiting the Rhode Island School of Design Museum of Art I managed to find the perfect sized art museum! Not only was it neither too big nor too small, but it also provided such a wide variety of art.