I've only stayed on the strip and visited downtown a few times. I'm planning a possible downtown stay. Part of the reason is to do a less expensive trip. Another reason is check out downtown during VIMFP. Aside from gambling, eating and drinking, when I'm on the strip I usually walk a lot and check out the casinos. What is there to do downtown that's touristy or involves walking? I've done the mob museum and the neon museum. Is there a good downtown things to do guide?