States

Going to the U.S. on May 15. Staying chiefly on Texas but maybe visiting nearby states. Just my 3 sisters and me (yey!). One or two weeks. Any ideas on interesting things in the area? Whatever it is, we want to hear it! Thanks. (We do know about the San Marcos outlets20marcos%20outlets&hl=en and they are great, but we want to expand our southern horizons.)%