San Antonio's natural history and cultural museum, in Brackenridge Park along the River Walk. Four floors covering Texas history from prehistoric times to the 20th century, with strong exhibits on the Indigenous peoples of South Texas, the Spanish colonial period, the Texas Republic, and the natural history of the Hill Country and South Texas plains.
The South Texas Heritage Center on the ground floor is the best single exhibit — an ambitious narrative of 16,000 years of human occupation of the region. The H-E-B Science Treehouse attached to the building is a popular children's science centre built around the museum's live tree canopy. On the River Walk near the Museum of Art; both can be visited on the same day.