So far, the amount of images from the Lunar Reconaissance Orbiter classified by citizen scientists on the Moon Zoo project would cover an area 10.36 times the size of Wales (and over 1 billion times the size of a blue whale)! If you would like to see this value represented in many other interesting units (such as Disneylands) then check out the Moonometer.

To help expand this area you can either classify objects in the Crater Survey or Boulder Wars.