The centre piece of Discoveryland, over at Disneyland Parc, Paris, is the Orbitron, or Orbitron - Machines Volantes (to give it its full title). An attraction similar to those Astro Orbitors in other Disney Tomorrowlands, you can board a Machine Volantes and take a circular flight around the tall tower and planets.
As you can see in the picture, the design of the attraction is similar to the rest of Discoveryland, having taken its inspiration from Leonardo Da Vinci and Jules Verne.