A windcatcher (Bâdgir; بادگیر) is a traditional Persian architectural device used for many centuries to create natural ventilation in buildings. It isn't known who first invented the windcatcher, but it still can be seen in many countries today. Windcatchers come in various designs, such as the uni-directional, bi-directional, and multi-directional. Background Central Iran has a very large day-night temperature difference, ranging from cool to ex… (More on Windcatcher)