Antonio, our guide, was fantastic. He was engaging, animated, extraordinarily informative and obviously one who loves his job. He provided an experience that any visitor to Chicago (The Stinky Onion) should avail themselves of. It goes without saying that the architecture of the city is gorgeous. For an East-coaster, used to the lack of planning and general lack of luster in Providence, Boston, or NYC, Chicago's downtown was an eye-opener for us!