In the market for a one-of-a-kind, like-nowhere-else-in-the-world hotel experience in California? Allow us to weigh in. We've checked in to Napa Valley vineyard inns, desert wellness centers, beachfront resorts, Hollywood landmarks, and Spanish-style ranches, all to discover the most extraordinary hotels out there (and this is the land of extraordinary hotels). Here are the California boutiques we love the most.