We went to see the Opryland ICE! exhibit this past Tuesday and it was pretty cool, but a little on the expensive side for the amount of things you get to see.
We had a great time. Even though Carter decided not to go down the ice slide, Jill and I both went anyway. If you go, the parkas they provide are plenty warm, but I would recommend gloves, as my hands got cold very quick.
Click the photo and head on over to Flickr to see a few more from the ICE! exhibit or view them in the Cell Phone Photo gallery on the site.