I REALLY need some help here. As part of a rite of passage thing with my daughter (age 14), we are driving from SF all the way to McAllen, Tx. We are in not much of a hurry (we have about a week) and I want to make a trip to remember! The problem is that I've never done it and I am not from the US (so my knowledge of US geography is work in progress) so I am pretty much clueless about how to go about or which are good stops on the road. Any and all suggestions, stops along the way, routes, things to avoid, other threads like this one, etc. are very welcomed. This is mostly sightseeing, so national parks, views, museums, oddities, etc. are fine.
One specific question is, is it worth it to drive route 66 or would it make more sense to use other/newer highways?
Thank you very much for your advice!