If you're up for a 1 hour drive and you appreciate unique architure, you may want to check out the Mission Inn in Riverside. Three years ago, I went to the Mission Inn for a friend's rehearsal dinner and I was surprised by this stunning Riverside landmark.
The Mission Inn is comprised of a hotel, spa, restaraunts, and chapels. A couple hours to walk around the premises and catch a meal at one of the restaurants should be enough.
For more information, visit: www.missioninn.com