Part of the UNESCO‑listed San Antonio Missions, this active parish and 18th‑century complex is free to visit and steeped in layered Indigenous and Spanish histories—core to the city’s identity. ([nps.gov](https://www.nps.gov/saan/planyourvisit/directions.htm?utm_source=openai), [whc.unesco.org](https://whc.unesco.org/en/list/1466-003?utm_source=openai))