Of all historic Iranian cities, Yazd, with thousands of historic residential buildings and a large number of traditional structures such as badgirs (wind-towers) and qanats (underground tunnels) contains the largest uninterrupted historic urban fabric in Iran. The city is also an important example of Iranian urban history, whose urban fabric, well adapted to regions dry and hot climate, is relatively a living and dynamic area. The special climate of Yazd has made it necessary to adapt a particular architectural style and urban development/redevelopment schemes. Furthermore, most historic areas of the city contain various traditional structures such as the badgirs, ab-anbars (water storages) and qanats. The existence of these mud-brick ventilation structures, which dominate the city’s roofscapes, creates a distinctive architectural feature of Yazd in which an efficient clean energy system has been used for centuries.
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