Answer: Museum of Natural History
The museum represents the world Holden wishes he could live in: it's the world of his “catcher in the rye” fantasy, a world where nothing ever changes, where everything is simple, understandable, and infinite. The introduction to this symbol seemingly raises Holden's spirit because it is a place of nostalgia and peace for him. "'Nobody’d be different. The only thing that would be different would be you. Not that you’d be so much older or anything. It wouldn’t be that, exactly. You’d just be different, that’s all'". This quote supports my explanation because of the way Holden speaks of the museum in this passage. He talks about it as if it is his favorite thing in the world and nothing bad to say about it.
