I have always wanted to to do this and never have. I am not sure it will happen this year but YOU should do it. I think it would be fun to split up with a bunch of couples and have a race around downtown looking for as many pictures as possible. Check out this article in the Deseret News. http://www.deseretnews.com/article/1,5143,700259065,00.html
Every year the Deseret News sponsors a contest in downtown SLC to find these places. They provide 20 photos - itty bitty snipits of things seen around SLC. You have to locate these pictures and document their exact location. I think it sounds like to the best thing to do on a perfect fall evening. Plus, I love going downtown. And, if you are really good - you could win some cool prizes.
PS - update on Kenyon - he is improving so they will not do the GVHD tests. It is/was probably a virus. We will go again Friday for a couple more tests to make sure the levels are alright.