I
really like Columbus' city hall. It's a very well done piece of the style.
I also liked the roof of the old Detroit City Hall. Unfortunately, it quickly became way too small for a city busting at the seams:
WSU Virtual Motor City Collection
WSU Virtual Motor City Collection
And, it looked even better when finally cleaned of soot.
WSU Virtual Motor City Collection
I think the tower left a lot to be desired, though.
Grand Rapids old city hall was a stunner. It was a Richardsonian Romanesque in style:
WSU Virtual Motor City Collection