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Can you guess where this is? Clue: a third of the world's art treasures reside in this city, according to UNESCO. #italy #view #travel #instatravel #travel #travelgram #wanderlust #hotelsdotcom Hotels-live.com via www.instagram.com/p/BBXKAMyFaOR/ #Travel via http://flic.kr/p/DmngkG