well, I am a west coaster. in California, dont miss the redwoods, and paul bunyon is always just fun to see.
Brightenbush hot springs in Oregon are to die for if you have time.
in washington, you have to hit up the typical Seattle, Pike place market, hit bellingham if it isnt too far out of your way, its just a fun little college town, but you have to kind of look for fun
Santa Cruz is one of my favorite places in California, if you a surfer, go there for sure!
and I'm a big brain dead right now so I can only think of the obvious but yes! there are lots! enjoy!