People come to San Diego for 4 good reasons:
1. Weather (it's usually sunny here)
2. Attractions - We have the World Famous San Diego Zoo, Sea World and LEGOLAND California
3. Beach - We're on the West Coast!
4. Balboa Park - We have the best museums in San Diego. They are located in Balboa Park, which is about 10 minutes from downtown. Here, you'll find great architecture and history.

Buy Balboa Park pass to see all 14 museums for one low price.
http://arestravel.com/4543_attraction-tickets_a352.html