WHAT CAN GO HERE:
* Text for a sub-menu.
(for instance, if Link 1 is "Animals," the user can click it and then see a list of animals listed down this column).
* Images to represent the page.
* Quick facts to support the main body of the page.
Moons
http://www.kidsastronomy.com/images/moons/callistoplus.jpg
This moon is a planet'smoon but not our planet.