Conservationists at Persepolis, Iran's most iconic ancient site, are waging a delicate battle against an unlikely adversary: ...

Lost Worlds investigates the very latest archaeological finds at three remote and hugely significant sites - Angkor Wat, Troy and Persepolis. Lost Worlds travels to each site and through high-end ...

Conservationists at Persepolis, Iran’s most iconic ancient site, are waging a battle against an unlikely enemy. They are fighting lichens, organisms that grow on surfaces like stone and can ...