The stone-eaters that threaten Iran's ancient Persepolis Conservationists at Persepolis, Iran's most iconic ancient site, are waging a delicate battle against an unlikely adversary: tiny but ...

Text by MENNA ZAKI & AHMAD PARHIZIConservationists at Persepolis, Iran's most iconic ancient site, are waging a delicate battle against an ...

Conservationists battle lichens eroding ancient Persepolis, aiming to preserve intricate carvings and structures from ...

The fight, which began years ago, is aimed at stopping the threat to the integrity of the site's structures and its intricate carvings from lichens, organisms that grow on surfaces like stone and ...