Why dredge up these memories of past failures?
Eric Nusbaum writes:
"While the stadiums we erect can embody both civic pride and civic catastrophe, unbuilt stadiums reflect our ambitions and our shortcomings more brightly. The ballparks we imagine, design, and fail to see through to completion are testaments to our egos, our metropolitan insecurities, our ever-changing sense of aesthetics, and our growing economic expectations."
Slate has a slideshow with notes showing plans and models of these ill-fated sports stadia.