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Citadel of Thang Long, Vietnam – UNESCO World Heritage
#UNESCO #PatrimonioMundial #WorldHeritage #PatrimoineMondial #Welterbe #Philately #Filatelia #Sellos #Stamps #Timbres #Philatelie #Briefmarken #UNESCOWorldHeritage #ThangLong #CitadelofThangLong #Hanoi #HoangThanhThangLong
#citadelofthanglong — Public Fediverse posts
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