Obviously the impression the museum gave....
(Playing with dolls)
"Let's go to the museum"
(Pretends to have them walk somewhere)
"OH! Look at all the GUNS!"
But then she extended her museums....
I was working on some sewing projects and she came into the room with some of her dolls.
"We're going to the sewing museum!"
(Puts her dolls on my sewing basket full of stuff)
(Has a doll be a "guide")
"This is thread."
"This is a needle."
Except she had to ask me what the name was of most of the other items...like "thimble", "bobbins", etc. Then I'd tell her what it was called and she'd continue the tour and tell her dolls.