March 4, 2014 | Bobby Tanzilo for OnMilwaukee.com  Milwaukee hotel magnate and philanthropist Walter Schroeder has left traces of himself across this city and the state. His donations to places like Marquette University, Milwaukee School of Engineering and the YMCA have guaranteed his name lingers at those institutions. He built seven hotels in Wisconsin and Minnesota … Continue reading OnMilwaukee.com: Schroeder’s masterpiece endures as Hilton City Center