 Linderfelt 's most significant achievement was the arrangements for the construction of a library and museum building at 814 Wisconsin Avenue . A national competition was held and 74 designs were proposed . One of the entrants was a 25 @-@ year @-@ old Frank Lloyd Wright , whose entry was helpful in publicizing his blooming career . The winning entry was a neo @-@ renaissance structure from the Wisconsin architecture firm of Ferry & Clas , which was constructed at a cost of $ 780 @,@ 000 . It opened on October 3 , 1898 . Today , the building is still in use as the Milwaukee Public Library 's Central Library and is listed on the National Register of Historic Places . 
