One of the places you need to visit in California is the fast food restaurant IN-N-OUT. It's like McDonald's and Burger King just way better and not made with crazy, awful conservatives and things like that. I think it's a California thing only because they definitely don't have it in New York and I didn't see it in Nevada or Arizona or anywhere else that I went.
It is soooo tasty!! You have to give it a visit if you are ever in California!