On the occasion of the 45th anniversary of Persepolis's registration as a UNESCO World Heritage site, Alireza Askari Chaverdi remarked that the term 'Iran' embodies a complex philosophical concept ...

Persepolis, the most well-known ancient site ... and the harsh desert climate. "We cover the lichen with a material, and after a week, repeat the process until they weaken enough to be removed ...

"We cover the lichens with a material and ... Sohrabi said, noting that some at Persepolis were over 1,700 years old. "Many of Persepolis's intricate motifs have already been lost due to lichen ...