A windcatcher (Persian: بادگیر Bâdgir, Arabic: بارجيل Baarjiil) 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. Examples of windcatchers can be found… (More on Windcatcher)