The main entrance was flanked by an imposing marble gate giving way to a central court and to the building's floors. A crenelated cornice ran the entire surface of the roof complete with bartizans flanking the corners; a layout reminiscent of Medieval European castles. In the central axis of the main facade stood a large ornate gable decorated with volutes surrounding a clock.[7] The structure had a surface area of 3500 square cubits and contained close to 80 rooms.[3]