Wind tower (wind catcher)

A “natural” solution for room air conditioning

A windtower (wind catcher) (Persian: بادگیر‎ bâdgir: bâd “wind” + gir “catcher”) is a traditional Iranian architectural element to create natural ventilation in buildings. Windcatchers come in various designs: unidirectional, bidirectional, and multidirectional. The devices were used in ancient Iranian architecture. Windcatchers remain present in Iran and can also be found in traditional Persian-influenced architecture throughout the West Asia, including in the Arab states of the Persian Gulf, Pakistan, and Afghanistan.
Source: Wikipedia