BUILDING THE GREATEST CATHEDRALS (Documentary) HistoryArchitectReligion Cathedrals is a Christian church which contains the seat of a bishop, thus .\rbr\rbrFor more science and technology videos and documentaries, please subscribe to my channel Science&Technology 4U\rbr\rbrA great collection of documentaries from around the world. Take a dazzling .\rbr\rbrbuilding the great cathedrals - nova (documentary). thanks for watching history life discovery science technology tech learning education national nature .