▁listed ▁A gg ie ▁Bon fire ▁as ▁the ▁largest ▁Bon fire ▁in ▁the ▁world . ▁ ▁Design ▁change ▁ ▁In ▁ 1 9 7 8 , ▁Bon fire ▁shift ed ▁from ▁its ▁previous ▁te e pe e ▁design ▁to ▁a ▁wed ding ▁c ake ▁style , ▁in ▁which ▁upper ▁stack s ▁of ▁logs ▁were ▁wed ged ▁on ▁top ▁of ▁lower ▁stack s . ▁The ▁structure ▁was ▁built ▁around ▁a ▁fort ified ▁center ▁pole , ▁made ▁from ▁two ▁tele phone ▁pol es ▁sp lic ed ▁together ▁by ▁cutting ▁matching ▁not ches , ▁approximately ▁ ▁long , ▁and ▁with ▁ ▁of ▁gl ue . ▁Four ▁steel ▁pl ates ▁were ▁bol ted ▁to ▁the ▁two ▁pol es , ▁and ▁a ▁ ▁cable ▁wrapped ▁around ▁the ▁joint ▁and ▁secured ▁to ▁the ▁pole ▁with ▁steel ▁st ap les . ▁Four ▁per imeter ▁pol es ▁were ▁placed ▁ ▁away ▁and ▁ro pes ▁were ▁stretch ed ▁between ▁the ▁per imeter ▁pol es ▁to ▁center ▁pol es ▁and ▁t ension ▁placed ▁on ▁them ▁to ▁hold ▁the ▁center ▁pole ▁together . ▁After ▁the ▁center ▁pole ▁was ▁ere cted , ▁logs ▁were ▁placed ▁vert ically ▁around ▁it ▁in ▁a ▁multi - t ier ed ▁wed ding ▁c ake ▁design ▁composed ▁of ▁thousands ▁of ▁logs . ▁By ▁ 1 9 8 4 , ▁the ▁logs ▁were ▁s lop ing ▁only ▁ 1 4   de gre es . ▁The ▁spir al ▁arrangement ▁of ▁the ▁logs ▁was ▁designed ▁to ▁make ▁Bon fire ▁collapse ▁into ▁itself ▁in ▁a ▁tw isting ▁motion , ▁thus ▁protect ing ▁spect