My boyfriend and I are driving one-way from Houston to Las Vegas and need to get there fairly quickly but would like to see a couple of cool spots along the way that are not too out of the way. We only have a few days to get there so I wanted to know what we can do realistically. I mapped the route on mapquest and yahoo and got 2 totally different routes so wasn't sure which one to choose. I thought about going to the Grand Canyon but don't know if we have time. How far do you think we can get on the first day?