@helenczerski Well, I think this accounts for only part of the effect. Art (or other types of museum exhibits, but especially art) is designed to trigger intense emotions and unconventional thinking. Each piece is an emotional thought bomb, so a museum is a minefield of wonders. Viewing, interpreting, connecting, feeling, and reacting to a piece, then moving on to another, and then another, is a flow of intense experiences that cannot help but be wearying.