My boyfriend and I will be driving from Phoenix to Seattle this Friday. He's done this drive numerous times, and is refusing to go the route I want through the lava beds national park (for caving) and crater lake. We've done it before but from SEA to PHX, I loved it which is why I wanted to do it again. Nevertheless, he won't budge. Anyone have other ideas of monuments, non-boring national parks, or fun sights to see along the way?