Take the staircase to either side of the entrance to the Pirates of the Caribbean up to the balcony above the Pirates entrance and you're in a place that did not exist when I visited Disneyland as a kid, The Disney Gallery, an art gallery featuring much of the great concept art of the park that imagineering have produced over the years.
Since it is also a store, you can even get prints made of much of the art shown , picking from whats available on the computer screens in the store then you take a slip with your selections to the counter where they print it up for you, at least I think that's how it works, though I spent a few moments browsing though the selections at one of the computer terminals I did not want to tie it up long since I wasn't making a purchase.
There is also a great selection of books on Disneyland and Art books on Disney artists for sale here (more things I had to put off purchasing, sad, because these things tend to go out of print after a while). From his reaction to the place, I feel confident that Kyle will want to check back in here once in a while on future visits to Disneyland.