Source: Xinhua| 2018-08-29 21:25:37|Editor: Shi Yinglun
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Photo taken on Aug. 27, 2018 shows a view of Alisadr cave in Hamedan province, western Iran, on Aug. 27, 2018. Alisadr Cave attracts thousands of tourists every year. (Xinhua/Ahmad Halabisaz)
