Hi Alex, when you leave San Diego and travel to LA, please avoid going to Hollywood, it is dirty and an embarrassment to all of us in LA. I would recomend seeing Universal City just north of Hollywood on HWY 101, you will have a great time on the Universal Studios tour and you will enjoy the Universal City Walk (great place for tourists, good food!). Also if you like art/history/culture then seeing the Getty Museum in Malibu and the the Skirball Culture Center in west LA are a must-see! Also, when leaving LA, use HWY 101 north to Santa Barbara and all the way to San Luis Obisbo where you can take famous HWY 1 for a spectacular drive up the coast to Hearst Castle at San Simeon (another must-see), then north through the ancient Redwoods of Big Sur, continue north to Carmel and Monterey (see the Aquarium there), and continue towards San Fransisco. This will give you the most memorable and beautiful road trip that California can offer!