Originally Posted by Keefer
+1 for the Getty. The place itself is a work of art.
I agree with Getty Museum. Also there is Getty Villa in Pacific Palisades. Both are free and great places to take a date. You have to book tickets in advance at Getty Villa on their website.
In a similar vein you can try Huntington Library/Huntington Gardens in Pasadena.
You might also try something like the LA Farmer's Market at 3rd and Fairfax.
For good food a bit closer to USC try Lazy Ox in Little Tokyo.