Where is your favorite place to go at the Smithsonian in D.C.?

I haven't been in a while and don't know when I'd ever be able to go again. But I liked, I think its the Natural History museum, with the dinosaurs and a pickled giant squid and a room full of gemstones and I think some mummies. And an outside art museum. And I thought the Holocaust museum was sad. I know they aren't part of the Smithsonian but the Capitol building and White House and Washington Monument and things like that were boring. I mean, I can say I saw them but that's about it. And the National zoo was smaller than I thought it would be.