Chicago Architecture Center Board of Trade, the Marquette Building, the Monadnock Building, and Daniel Burnham and John Wellborn Root's Rookery among many others. Some modern buildings that are explored include the Sears Tower, John Hancock Center, Mies van der Rohe's Chicago Federal Center and the Trump Tower. The CAC also offers tours of parks and public spaces such as Millennium Park, Maggie Daley Park and the Chicago Pedway. During the summer months, the CAC offers tours of various neighborhoods throughout Chicago in addition to downtown tours. The CAC's most popular tour, the CAFC River Cruise aboard Chicago's First Lady Cruises has departures April–November
Center City Tower (Philadelphia) Center City Tower (Philadelphia) Center City Tower was the working name of a formerly proposed skyscraper in downtown Philadelphia. Designed and proposed by the firm now known as KlingStubbins (designers of Philadelphia's Penn Center and Bell Atlantic Tower), the building would have risen to a height of 1,050 feet (320 m) and 75 stories, making it the tallest building in The United States outside New York and Chicago, surpassing the height of the Bank of America Plaza in Atlanta. With a floor area of , it is one of the largest in Center City. The building was designed with an