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Monarch Butterfly Reserve, Mexico – UNESCO World Heritage Site
#UNESCO #PatrimonioMundial #WorldHeritage #Welterbe #Philately #Filatelia #Sellos #Stamps #Timbres #Philatelie #Briefmarken #UNESCOWorldHeritage #MonarchButterflyReserve #ReservaDeLaMariposaMonarca
#ReservaDeLaBiosferaDeLaMariposaMonarca #MariposaMonarca #SierraChincua #Michoacan