The 'Marquis De Quevilly' merry-go-round is a small whirligig with four unique flying machines, based on the models of the pioneers of aviation. 

Marquis De Quevilly, one of these pioneers, strongly believed that his way of flying would work. He spent his entire fortune building different machines, but sadly never got off the ground with any of them. 

With this whirligig his dream comes true after all!