▁ 5 0 ▁Church ▁Street , ▁between ▁Green wich , ▁Cort land t , ▁Church , ▁and ▁F ult on ▁Stre ets . ▁This ▁combined ▁rail ▁terminal ▁and ▁office ▁block ▁was ▁the ▁first ▁of ▁its ▁kind ▁anywhere ▁in ▁the ▁world . ▁The ▁fac ades ▁of ▁the ▁buildings , ▁as ▁proposed , ▁were ▁made ▁of ▁Indiana ▁lim estone ▁below ▁the ▁fifth - floor ▁s ill , ▁and ▁of ▁brick ▁and ▁ter rac otta ▁above ▁the ▁fifth - floor ▁s ill . ▁The ▁s ill ▁above ▁the ▁ 1 7 th - floor ▁s ill ▁would ▁be ▁made ▁of ▁orn amental ▁ter rac otta . ▁ ▁The ▁two ▁buildings ▁were ▁ident ically ▁designed , ▁apart ▁from ▁the ▁southern ▁building ' s ▁larger ▁foot print ▁and ▁floor ▁plan . ▁Both ▁had ▁ro o ft op ▁gard ens . ▁De y ▁Street ▁ran ▁between ▁the ▁two ▁structures , ▁since ▁the ▁city ▁would ▁not ▁allow ▁that ▁street ▁to ▁be ▁demol ished ▁to ▁make ▁way ▁for ▁the ▁Hudson ▁Terminal ▁Build ings . ▁The ▁two ▁buildings ▁were ▁connected ▁by ▁a ▁ped est rian ▁bridge ▁over ▁the ▁street ▁on ▁the ▁third ▁story ▁of ▁each ▁building . ▁A ▁bridge ▁connecting ▁the ▁buildings ' ▁ 1 7 th ▁flo ors ▁was ▁approved ▁and ▁built ▁in ▁ 1 9 1 3 , ▁soon ▁after ▁the ▁complex ▁had ▁opened , ▁ ▁Under ground ▁conc ourse ▁ ▁A ▁three - story ▁under ground ▁conc ourse ▁area ▁connected ▁the ▁two ▁structures . ▁ ▁The ▁top ▁story ▁was ▁a ▁ ▁conc ourse ▁with ▁ticket ▁offices , ▁waiting ▁rooms