▁ ▁Tow ards ▁the ▁end ▁of ▁the ▁Seven ▁Years ' ▁War , ▁Frederick ▁the ▁Great ▁had ▁the ▁old ▁gate ▁demol ished ▁and ▁built , ▁in ▁its ▁stead , ▁this ▁new ▁Brandenburg ▁Gate , ▁as ▁a ▁symbol ▁of ▁his ▁victory . ▁For ▁that ▁reason ▁the ▁Brandenburg ▁Gate ▁res emb les ▁a ▁Roman ▁tri um phal ▁arch . ▁Its ▁prototype ▁was ▁the ▁Arch ▁of ▁Const antine ▁in ▁Rome . ▁The ▁Roman ▁influence ▁of ▁its ▁architect ural ▁style ▁can ▁be ▁seen , ▁for ▁example , ▁in ▁the ▁double ▁columns ▁of ▁Cor inth ian ▁order ▁as ▁well ▁as ▁the ▁design ▁of ▁the ▁att ic . ▁ ▁A ▁feature ▁of ▁the ▁Brandenburg ▁Gate ▁is ▁that ▁it ▁has ▁two ▁completely ▁different ▁sides , ▁designed ▁by ▁two ▁architect s . ▁Carl ▁von ▁G ont ard ▁designed ▁the ▁city ▁side , ▁his ▁pup il , ▁Georg ▁Christian ▁Un ger , ▁the ▁field ▁or ▁coun tr ys ide - f acing ▁side . ▁G ont ard ▁made ▁the ▁city ▁side ▁as ▁a ▁rendered ▁fac ade ▁with ▁Cor inth ian - style ▁les enes ▁and ▁tro ph ies , ▁Un ger ▁designed ▁the ▁field ▁site ▁in ▁the ▁style ▁of ▁the ▁Arch ▁of ▁Const antine ▁with ▁Cor inth ian ▁double - columns ▁and ▁orn ament ation ▁like ▁the ▁golden ▁tr ump ets . ▁The ▁two ▁side ▁ent ran ces ▁for ▁ped est ri ans ▁were ▁not ▁added ▁until ▁ 1 8 4 3 , ▁under ▁Frederick ▁William   IV , ▁in ▁order ▁to ▁co pe ▁with ▁the ▁increase ▁in ▁ped est rian ▁traffic .