Who has not visited this art institution? One of my friends gave me the best Getty tip which I have yet to try: Assuming you're not a football fan, go to the Getty Center on Super Bowl day. She said that the center is the most deserted you'll ever see it, and you'll have the whole place to yourself! Well, not exactly to yourself: I'll be there too. ;)
The Getty Center in Brentwood is on every L.A. tourist's agenda, and with good reason; there's fantastic art and architecture at every turn. My favorite area is the garden. Bring a camera because there are great views of the city here too.