Founded in 1929, Hacienda del Sol has been a Foothills favorite for years — and for good reason. Set on 34 acres, its 30 guestrooms run from charming historic spaces to the home-away-from-home Tracy-Hepburn Casita Grande, named after the pair of stars that used it as a private getaway. Also on the grounds are two restaurants — including award-winner The Grill — a full-service spa, a secluded pool, an organic garden, and even a wine gift shop. But perhaps the best part is the surrounding Sonoran Desert, which provides views that make it easy to stay longer than you'd planned.