Fun thing to do, especially with an older child. Make an advance reservation and arrive ten minutes early. First thing you see is a video explaining the history. When we were there they said the video was old and it would be replaced by a new video very soon. For the rest of the tour you are walking between buildings part of the time so wear a jacket if it is raining (and know that they will cancel or postpone tours if there is lightening). It was fun to see the chips, pretzels and other snacks being prepped, baked, seasoned, bagged and boxed.