Willard Thorsen was the mall's architect. The plaza's central court, larger than a football field, measured in at 350 feet long and three stories high. The court's roof was marked by ten inverted hyperbolic paraboloids, columns that resembled upside-down umbrellas. These dynamic concrete shells measured 65 by 71 feet, standing on single 28-inch square columns. This construction was extremely modern for its time, and is now historically representative of the era.