For a unique vantage on the city--and no worries about traffic snarls--sign up for an architectural tour with Chicago Water Taxi. These "boat rides with a brain" offer an engaging survey of the city’s rich architectural history and views of famous works by acclaimed architects like Mies van der Rohe, Bertrand Goldberg, and Skidmore, Owings and Merrill  that are better than anything you glimpse from the asphalt canyons of street level.