Everyone remembers the Alamo, but that famed Spanish mission is only one of five such frontier outposts in San Antonio. The San Antonio Missions National Historical Park preserves the other four: Mission Concepción, Mission San Francisco de la Espada, Mission San Juan Capistrano, and Mission San José y San Miguel de Aguayo. In this 1970s episode of The Eyes of Texas, host Ray Miller narrates a tour of the historic structures as well as the neighboring Espada Aqueduct, which still distributes water to the missions today. UNESCO designated both the Alamo and the San Antonio Missions National Historical Park a World Heritage Site in 2015.