Dominant Design Feature. Decorative two-wing domestic iron doors, and multi-wing folding iron shop-doors which fold back to either side of the entrance, are a prominent architectural design feature in Jerusalem.They were installed mainly from the late 19th century to the early 1930s, and were in houses of most of the ethnic communities in the city. Each wing of the iron door has three main elements: an upper window with a stylized grille and two lower panels, decorated with cast iron rosettes. Nowadays, they are most prevalent in the Old City – in the Muslim, Christian and Armenian Quarters, but also in Arab neighborhoods like Sheikh Jarrah, Musrara, Talbieh, Katamon, Baq’a and Abu Tor.