Extensive exhibits covering natural history and natural science of Texas; dioramas of Texas flora and wildlife. Rebuilt on grounds are four early Texas houses and furnished log cabin. Slide presentation about San Antonio's history and contemporary scene. Open Mon. - Sat. 10 a.m. - 5 p.m. (Tues. 9 p.m.); Sun. noon - 5 p.m. Admission, except free Tues. 3 - 9 p.m.