Well, before I turn 30 I will sail the Atlantic, and before I turn 35 I´ll drive through the US by car (visiting the rural areas, National Parks - of course the Colorade river, etc). After having seen the East and West Coast, it´s time to do that.
Cool. Come on over, just remember to brush up on your english and spanish, and drive on the right side of the road.
I haven't done it myself, but I also intend to do it. Since I'm approaching 35 quickly, I'll amend my goal. I'll probably do it before I turn 40.
Btw, the US is huge, massive, continent-size. It will take a few months to actually do a decent job a driving through the main landlocked states