Milwaukee City Hall Milwaukee's City Hall was constructed in 1895 and was the tallest building in Milwaukee until the First Wisconsin Center was built in 1973. That building is now the U.S. Bank Center. To tour the bell tower, you will need a free ticket that must be booked online in advanced at doorsopenmilwaukee.org.Photo by: John Mattrisch | JMKE Photography Northwestern Mutual Northwestern Mutual Tower and Commons is Milwaukee's first "significant" building of this century. The top-floor of the tower offers sweeping views of the city and Lake Michigan, providing some of the most unique photo opportunities of Milwaukee.Photo by: JMKE Photography Basilica of St. Josaphat One of the most iconic buildings south of downtown Milwaukee, the Basilica of St. Josaphat was made from materials of the demolished Chicago Federal Building. The Roman Catholic parish remains a testament to the faith of Polish immigrants who built it between 1896 and 1901.Photo by: JMKE Photography JMKE federal building.jpg Constructed in the 1890s, the Federal Courthouse on East Wisconsin Avenue is a Richardson Romanesque Revival. There will be various tours offered on Saturday. It's been noted that security may take 30-45 minutes to get through.Photo by: John Mattrisch Milwaukee, Wisconsin The Milwaukee Public Library opened to the public in 1898 as a Neo-Renaissance style building with an intricately carved limestone facade. On Saturday, Doors Open visitors can view the Green Roof and 4th floor offices that previously housed the Milwaukee Public Museum. On Sunday, tours of the rotunda dome and the Old Board Room will be available. Photo by: Photographer: Kenneth C. Zirkel 8398849583_2bb71a46a3_z.jpg Built in 1893, the lavish hotel was billed the "Grand Hotel of the West" because it featured fireproofing, electricity throughout and individual thermostats in each room. The Pfister has seen major renovations throughout the years without losing its original charm and elegance. Photo by: Kanwar Sandu