Tucson as we know it was once just a Spanish fort: the Presidio San Agustin de Tucson. This fort was the center of town as Tucson grew from an embattled Spanish outpost to a Mexican territory, then a Confederate capital, and finally, the second-largest city in the state of Arizona. On this tour, we’ll be tracing the Presidio’s original location. We’ll traverse its perimeter and see a reconstruction. We’ll also stop by military monuments and buildings that reflect the culture of Old Town Tucson.