Check the website for the Hollywood & Highland shopping center, located at Hollywood Blvd. and Highland. This is the site of the Dolby Theater (location of the Academy Awards ceremony -- you can take a tour of the theater), there is a photo op for the Hollywood sign on an upper level, Walk of Fame is out front, Chinese Theatre is next door, Disney's El Capitan Theatre is across the street, Jimmy Kimmel tapes across the street, parking is validated (ask at any shop or restaurant), etc. You can catch tours of the stars' homes and other Hollywood/L.A. tours from out front. Tell us a bit more about your likes/dislikes/interests so that we can tailor our recommendations more specifically for you. You might want to look into the Warner Bros. Studio tour -- that is a very good tour and very different from the one at USH. Also check out The Grove shopping center (very nice outdoor mall with fun, hip stores and nice restaurants) and The Farmer's Market (lots of fun restaurants) -- both have fairly consistent celebrity sightings and are just fun places to spend some time.