By utilizing a singular earth-casted arch as a foundational element, a scalable system emerges to define the museum’s program. This approach reinforces earth-casting as a powerful technique for creating site-responsive, low-impact architecture that seamlessly integrates with its natural surroundings. The Arcosanti Museum’s open and winding design intuitively guides visitors through the evolution of arcology, while its earth-casted elements and rhythmic structure honor Paolo Soleri’s vision, fostering deeper engagement with history, sustainability, and the future of architecture.