Kellys Spa at The Mission Inn Hotel

Listed as a National Register of Historic Places Landmark, the Mission Inn Hotel and Spa occupies an entire city block in downtown Riverside, California, and draws a crowd of dignitaries, cultural aficionados, honeymooners and romantics, and spa enthusiasts. The hotel's design blends southwestern and Californian influences with Mediterranean style; elegant architectural elements include domed archways, bell and clock towers, a wrought-iron staircase, a five-story open-air rotunda and interior courtyards, and a Tuscan-inspired spa. The 2.5-acre hotel, which reopened following completion of a $55-million makeover in 1991, has 239 guest rooms, a selection of culinary options, and two wedding chapels set in the atrio, or Spanish-colonial inspired courtyard. Guests can also explore the hotel's on-site museum.