water cistern and ice storage in dakhma archaeological site, yazd, iran

achaemenid ahura ancient archaeological architecture asia avesta building burial cistern city cooler cult dakhma desert dome east esfahan eternal evaporation excarnation flame hill house iran isfahan ispahan landmark landscape mazda mazdayasna middle mountain old persia portal religion ruins sand shrine sightseeing silence site style temple tourism tower travel underground wind windcatcher yazd yezd zoroastrian zoroastrianism