To be fair to the OP, the original post stated "are there or were there", implying that a reference to the past was just as acceptable as the present.
In order to revolve, I would think the design of the building should be round-or at least the top floor. That pretty much excludes every building downtown save the Westin/Marriott RenCen. The Hyatt & HI Southfield revolved at one time, but aren't downtown.
OP brings up an interesting topic, though. Other than RenCen and Stouffer's Top of the Flame, were there any other "restaurants with a view" atop any other buildings downtown? IMO, Roostertail doesn't really qualify as "downtown", but that's arguable.
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