Planning to do the trip in 8-9 days. Would like to have 2-3 nights of camping.

1. According to yahoo maps I-80 would be the main highway to drive on. I wanted to know what are neigboring attractions that we can see, if we take this route. If there's an existing plan for this route, please send me the link. We want to include Pittsburg and Chicago in the trip.

2. Any other route, which would be as fast as taking I-80, but is more scenic.

Thanks,
Naveen