Road Tripping from Napa, CA to Tacoma, WA

My wife and I are moving from Napa, Ca to Tacoma, Wa and we are trying to plan a road trip over the course of 3 days. I am new to this community and was looking for advice on unique places, wonderful sites, and all around fun/cool stuff to see or do! We have already driving most of Highway 101 along the coast and had thoughts of driving inland instead. We will have two vehicles fully loaded with all our belongings. Not opposed to roughing it in the wild or staying in unique hotels/motels. Any recommendations from hikes, waterfalls, roadside attractions, bars/saloons, restaurants, bridges, art, or really anything would be greatly appreciated. This has been my new favorite site to use before going anywhere, I’m happy to finally become part of the community!

P.S. I would appreciate any recommendations on sites you use to do research on your next trip! One for anyone who likes to camp but doesn’t like to pay is freecampsites.net