PI Update: Revolving Floor vs Revolving Floor

To our knowledge, only 2 clubs in the United States had revolving dance floors:

^The revolving floor at Mannequins Dance Palace at Pleasure Island, Downtown Disney was extremely large and could carry hundreds of people. It was great fun watching newcomers approach the floor upon arrival and realize it was moving and then watch them try to figure out the best way to get on. The floor closed with the club closing in 2008 but we think it's still hidden beneath a false-floor inside current occupant Morimoto Asia restaurant.

^The only other revolving dance floor we're aware of was ironically not far away. It was located in club Amphitheatre at Ybor City, Tampa.  It was far smaller than the floor at Mannequins and seemed to move a bit faster. With its smaller diameter, a trip around the room progressed quicker. Sadly, the club burned down in 2016. 
Outside the United States, I've read that DaddyO in Cancun, Mexico has a revolving floor as does PopWorld York in York, England. The latter is small and holds just a few people.