The Mission Inn Hotel & Spa is one of the grandest of the grand hotels in the Golden State. And that's a statement that applies to the Riverside landmark, a hotel that takes up a whole block, on any day of the year. But when the Friday following Thanksgiving arrives, a switch is flipped and 4,500,000 lights begin to glow. They're free to see, through early January, each and every night. Plus look for the animatronic figures, the carolers, the stay-over packages, the treats, the gingerbread village, the cocktails, and the other fa-la-la details the property weaves into its highly visual holiday extravaganza.