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简介：ThegreatcathedralswerethewondersoftheMedievalWorld-thetallestbuildingssincethepyramidsandtheshowpiecesofMedievalChristianity.Yettheywerebuiltatatimewhenmostofuslivedinhovels.ArchitecturalhistorianJonCannonexploreswhowerethepeoplethatbuiltthemandhowweretheyabletoachievesuchaboldvision.…