If you are looking for a nice beach during your stay and are staying in the Westlake Village area this is the place.
Great place to walk around and see the beach. Carnival rides on the pier. 3rd street Santa Monica has a lot of shopping and restaurants.
Famous art museum
Public observatory and planetarium overlooking the entire city. Free to get in but wear comfortable shoes.
Theme park on the Universal Studios lot.
Happiest place on earth