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 ...

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 ...

Conservationists at Persepolis, Iran's most iconic ancient site, are waging a delicate battle against an unlikely adversary: tiny but persistent lichens. Built in the 6th century BC, ...

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, ...

PERSEPOLIS, Iran – 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 ...

Persepolis: 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 ...