Casablanca’s primary square is Place des Nations Unies. Major roads intersect here like a hub with spokes. The Place of the United Nations is surrounded by major hotels, restaurants and office buildings. The centerpiece is the Zevaco Dome, named after its designer Jean-François Zevaco. The globe-shaped sculpture is colloquially called Kora ardia. In the background is the clock tower of the Old Medina and its western wall. Some of these enclosures date back to the 16th century.