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flag Lichens damage ancient Persepolis site in Iran, with limited funding for conservation.

flag Lichens are threatening the ancient Persepolis site in Iran, eroding its stone structures and carvings. flag Built in the 6th century BC, Persepolis is a UNESCO World Heritage Site. flag Conservationists are employing modern techniques to combat this issue, but the annual restoration budget is only $220 per monument, while maintaining all historical sites would necessitate nearly $84 million annually. flag The preservation of Persepolis is crucial for Iranian cultural heritage.

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