Diego de Mazariegos Hotel
This old-fashioned hotel—really two perfectly preserved 18th-century colonial homes—has beautiful courtyards, gardens, and sunlit nooks throughout. Rooms have high ceilings and wide windows; some have fireplaces. Ask for one of the rooms that number in the 300s, which are in an older wing and have high wood-beam ceilings as well as working charcoal stoves. The bar, reached through a set of swinging doors, stocks more than 175 brands of tequila.