Nestled into the steep slope of a mountain, this remarkable thousand-year-old village in northern Iran has evolved an unusual approach to open space: its rooftops double as public lanes and gathering places. Image of road entering town and joining roof by Hoomanb (CC BY 2.5) At an elevation of nearly 3,500 feet, Masuleh sits high in the Alborz mountain range on a 60-degree incline. It was original