There's all kinds of stuff even without a car, there is Utah Trax
http://www.rideuta.com/ which is dirt cheap if not free. The walk is pretty simple there and with lots of stuff to see whether your Mormon or not. The Conference Centerwhich is just North of the Temple is way cool! You can take all kinds of pictures of that place. You can even go on top of roof and check out the waterfall that's on the building... etc. There's also the Capital, it's designed after the Texas Capital but not as big ;) Here's another site that has a lot of suggestions for touristy kind of stuff... best of all, if you need anything for your camera check out
http://www.pictureline.com/ They are located in down town SLC. Let me know if you have any questions and remember to take LOTS OF PICS, then post 'em! :)