No. California is a very big place, it would depend on where you are in No. Calif.
Sacramento has a great zoo and museum and the capitol building is very cool. Lake Tahoe is in No. Calif. so if you like gambling and shows, you can go there. San Francisco has tons of things to do and see. China Town, Fisherman's Wharf and the chocolate people (can't spell it).
A drive east on Hwy 80 out of the Sacramento area towards the mountains is beautiful and head to Grass Valley. Or take Hwy 49 through Placerville and Coloma to see all the gold country.
Oh I got homesick remembering all those places!