The distinctive white building resembles a flying saucer that has landed on its four legs. The appearance of the building as a single homogenous structure is a cleverly constructed illusion. The building's two crossed arches actually consist of four steel-reinforced concrete legs that extend approximately 15 feet above the ground, and a hollow, stucco-covered steel truss constituting the remaining lower arches and entire upper arches. To avoid changing the appearance of the structure with overt reinforcement, the building was retrofitted with a tuned mass damper to counteract earthquake movements.