a "merry-go-round" is the thing you call a carousel.

Sheesh! You guys won't let anyone show off will ya' !
We called them merry-go-rounds too. I was trying to be less provincial in case merry-go-round was a regional or just a USA thing.
To get back to the question : do you call 'em Hobby or Dobby horses? They weren't all horses although that seems to be a generic term for all the animals on the ride. They had a few benches for parents to sit on and other animals to ride like Lions and Tigers, Oh, my! Some of the animals were stationery others went up and down.
My favorite ride was a white horse that went up and down. Yes, the music was wonderful! And if you caught the brass ring you got a free ride.
Aha! There's another language thing-a-me ...catching the the brass ring.
Comments anyone?
wow