The Guardian | Saeed Kamali Dehghan: Thanks to its glittering mosques, breathtaking landscapes, ancient ruins and, believe it or not, ski resorts, Iran�s tourism industry underwent an extraordinary boom after the landmark 2015 nuclear deal.

Tourists flocked to the Middle Eastern country�to discover cultural treasureslargely unseen by western eyes since the 1979 Islamic revolution, and found the cost of staying there relatively cheap.

But�this week�s decision by Donald Trump�to pull the US out of the agreement, which could trigger its collapse and inflame an already tense region, is stoking fears that Iran�s tourism sector could slide back into the doldrums.

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