The fight, which began years ago, is aimed at stopping the threat to the integrity of the site's structures and its intricate ...

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

A UNESCO World Heritage Site since 1979, Persepolis features colossal sculptures and intricate stone reliefs of ancient Persian kings, nobles and deities. But these have suffered over the years ...

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 ...