I think there may be more orange on Gallifrey than on any other planet in the universe. If you image search "Gallifrey," you see a lot of orange. Now some of you may be wondering, "Gallifrey? Where is that?" It is located in a binary star system in the constellation Kasterborous, at "galactic coordinates 10.0.11 x 02." That is approximately 250 million light years away from Earth, probably within the Pisces-Cetus Supercluster Complex.
I have never been to Gallifrey, but I hear it is beautiful - fields of red grass, mountains that shine with silver-leafed trees, and from the outside, it is so very orange. The reason we know about this planet, is because the Doctor, a Gallifreyan (also an alien), is really great about protecting Earth from impending aliens of doom.
Gallifrey is also called The Shining World of the Seven Systems.
Its inhabitants, the Time Lords, live for thousands of (human) years.
In conclusion, Gallifrey... is fantastic.
Pictures from http://tardis.wikia.com/wiki/Doctor_Who_Wiki