Persepolis, the most well-known ancient site in Iran, is being threatened by tiny lichens eating away at the monuments. These organisms tend to grow on surfaces like stone and can slowly break ...

Persepolis, Old Persian Parsa, or modern Takht-e Jamshid is an ancient capital of the kings of the Achaemenian dynasty of Iran (Persia), located about 50 km northeast of Shiraz in the Fars region of ...