, ▁when ▁he ▁left ▁Wisconsin ▁to ▁en roll ▁in ▁the ▁Lawrence ville ▁School ▁in ▁New ▁Jersey . ▁Ad ler ▁en rolled ▁at ▁Pr inc eton ▁University ▁in ▁ 1 9 0 0 , ▁studying ▁art , ▁architect ural ▁history ▁and ▁Greek . ▁At ▁Pr inc eton , ▁Ad ler ▁designed ▁a ▁rem odel ▁for ▁the ▁Char ter ▁Club , ▁an ▁upper class men ' s ▁e ating ▁club . ▁ ▁The ▁source ▁of ▁Ad ler ' s ▁interest ▁in ▁architecture ▁is ▁uncertain . ▁Ad ler ▁began ▁illustr ating ▁at ▁Lawrence ville , ▁drawing ▁for ▁school ▁publications . ▁He ▁strugg led ▁at ▁Pr inc eton , ▁but ▁showed ▁apt itude ▁in ▁his ▁architecture ▁class . ▁After ▁gradu ating ▁in ▁ 1 9 0 4 , ▁he ▁tra ve led ▁extens ively , ▁mostly ▁to ▁study ▁the ▁architecture ▁of ▁Europe . ▁He ▁studied ▁for ▁three ▁sem esters ▁at ▁Techn ische ▁Universität ▁München ▁in ▁Germany . ▁From ▁ 1 9 0 6 ▁to ▁ 1 9 1 1 , ▁Ad ler ▁studied ▁at ▁the ▁É cole ▁des ▁Be aux - Ar ts . ▁An ▁av id ▁cycl ist , ▁Ad ler ▁would ▁travel ▁to ▁the ▁coun tr ys ide ▁of ▁France , ▁Italy , ▁and ▁England ▁to ▁visit ▁country ▁houses ▁and ▁collect ▁picture ▁post cards . ▁ ▁Career ▁After ▁returning ▁to ▁the ▁United ▁States ▁in ▁ 1 9 1 1 , ▁he ▁began ▁working ▁as ▁an ▁architect ▁for ▁Howard ▁Van ▁D oren ▁Shaw ▁in ▁Chicago , ▁Illinois . ▁Shaw ▁was ▁considered ▁the ▁for em ost ▁architect