When in Antigua, definitely stop by the Casa Santa Domingo. First off, this place ain't no ordinary casa! It is a large hotel (convention center, spa, museum etc) but executed well. There is a lot of history and guides standing out front would happily show you around. We were in the mood for just soaking it up on our own. You will enjoy the colorful tropical birds, the beautiful fountain and the historic ruins. It was the bastion of one of the grandest convents of the Americas (according to them.) If you like every amenity at your fingertips then this is the place for you in Antigua. At the very least stroll the grounds and have a Gallo, Guatemala's national beer.