re: #21 marjoriemoon
Their twitter bio says “We’re not a museum. We’re 19 of them! Plus 9 research centers & the National Zoo.” Oh, plus they’re in DC. Oops.
there are a couple of annexes…the newer Air and Space gig out at Dulles is a monster…but the old Smithsonian is down on the Mall in DC…the Castle, the American History and Natural History, and the magnificent Air and Space museum are all along there