Level 10 celebration / Birthday celebration / Help wanted!

Hello everyone!

I've recently reached level 10 and my birthday was earlier this month, so this is a cause of celebration!

Celebrating giveaway (Level 5)

Cool, now that we got that out of the way, I need y'alls help. So, what I'm doing is planning a cross country trip for this summer. It's something I've been wanting to do for a while now and I've got everything already taken care of as far as accommodations/food/traveling stuff. I could use some help in the planning department though, as I've not ever been this far west.

Here's the route for the trip. (May load slow cause Mapquest is slow)

Here's a list of cities along the route:

Atlanta, GA
Birmingham, AL
Dallas, TX
Fort Worth, TX
El Paso, TX
Albuquerque, NM
Grand Canyon National Park
Lost Angeles, CA
Yosemite National Park
San Francisco, CA
Eureka, CA
Seattle, WA
Butte, MT
Yellowstone National Park
Rapid City, SD
Denver, CO / Rocky MTN National Park
Atlanta, GA

The main goal of this is to visit the National Parks across this route and to see the Redwoods in the middle/northern California. Outside of that, I need suggestions/advice on some attractions to visit on the way to these destinations, as this is probably the only time in my life I'm gonna take a trip like this, so I want to make it count. So, if you live anywhere near any of these cities or are fimiliar with them, please share some advice on what to visit when I come to the area. :D

Tips and suggestions for general traveling is welcomed as well. I'm bringing books with me to help pass the time. :D