When I was a kid, my town park had a merry-go-round that was a lot like this:
Ours was bigger than this one appears to be. I think it was a good 12 feet high and the benches were each big enough to hold several kids. You could lie down on them, too.
It was a really fun merry-go-round but not at all safe by today's standards. You could get it going round and also swinging back and forth. You could also swing it too hard and slam it into the center pole. But, oh, was the motion it made cool! And it was fun because you had to work together to give it that motion. I'd like to go on one of those again.