The historic Qal’eh Shour Caravanserai is a remnant of Iran’s caravan trade routes, where architecture was shaped by climate, commerce, and survival. Built with local earth-based materials, its thick walls, vaulted chambers, and central courtyard reflect a functional response to harsh environmental conditions. This structure stands as an enduring example of vernacular desert architecture, where geometry, symmetry, and material simplicity create both resilience and spatial harmony.