CHASEPOINT #8 Architectural Walking Tour Chaser's discovered Chicago's unique charm and many offerings while learning something new about the city with a Chicago Greeter. Forewarned that this information may later be important, this challenge was to simply embark on a walking tour of downtown Chicago that celebrated the of early-day skyscrapers centered around Chicago's Loop. Learning in the history of the Manhattan Building, Plymouth Building, Old Colony Building, Metropolitan Correctional Center, Fisher Building, Monadnock Building, Government Center, Calder's Flamingo, Marquette Building, and the Marc Chagall's Four Seasons Mosaic.