I'll be on my own for 2-3 days in Vegas after my daughter gets married later this month and I'm looking for free and frugal things to do and see by myself. We've been to Vegas 20+ times and so I'm trying to find things I haven't done before. I will have a car so I can pretty much go anywhere I want. The problem is I've seen all the "big" things, Hoover Dam, Red Rock Canyon, Lake Mead..... hell I've even been out to Rachel, NV to see the aliens!! Any suggestions?