Despite being close to desert; Yazd is a green city. It owes its greenery to another ancient Iranian engineering technique. Their smart solution to the water shortage is recognized as UNESCO World Heritage Site. They invented Qanat and brought water from heart of the earth to the ground. A different UNESCO-Listed, still alive architecture of old city of Yazd (Historic City of Yazd), simple life style and hospitable people in spite of unkind and tight nature, all of which leave you speechless. Other highlights like Amir Chakhmaq Complex, Fahadan old neighborhood, Ziyaeyeh School (Alexander Prison), Water Museum, Congregational (Jameh) Mosque, Zoroastrian old Fire Temple, and the tallest wind tower in Dolat Abad Garden are eye- catching monuments which are created by hardworking desert residents. Some people are still living in these old dwellings and try hard to keep them safe in time of rain and other natural threats for next generations.