Conservationists at Persepolis, Iran's most iconic ancient site, are waging a delicate battle against an unlikely adversary: tiny but persistent lichens eroding the millennia-old monuments. The fight, ...
land surrounding Persepolis, a UNESCO World Heritage site, is sinking, and many of Iran's 28 World Heritage sites, including Pasargadae and Yazd, are located near sinking areas. In recent years, Iran ...
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