My wife would say Franck's at the Wedding Pavilion was her hidden treasure. Franck's, named after Martin Short's character in "Father of the Bride," is the WP's wedding coordinator office. The office lobby is a showroom that has displays and samples of the things you can get for your WDW wedding such as cakes, invitations, flowers, candles, card holders, etc, much of it obviously Disney themed. While we did not personally have our wedding or honeymoon at WDW, my wife used to be a wedding coordinator, so for her it was really cool to see all this stuff, and she always thinks of it as the highlight of our trip.
The only catch is that Franck's is by appointment only, and not open to the public. When we first walked up, the front doors were locked. The only reason we got in was that one of the wedding coordinators happened to be walking through the showroom as we were peering through the windows, so we knocked, and she was nice enough to let us in and just browse while she continued to work.
Here you leave today and enter the world of yesterday, tomorrow, and fantasy.