The Wastelands are big ...

... so save yourself some time and checkout this very handy map of the Fallout 3 world.

Of course, the map isn't required, by any means, but it was actually a really big help on getting to 100% understanding of the in-game 'compass.' 

The rest of the wiki is also packed with information, even though, unlike a true wiki, members don't seem to be able to edit items. (I noticed a minor style mistake that I could fix if I could edit an entry, but since I can't edit it, and can't find contact information ...)

Tagged Xbox 360 since I don't really care about Playstation's trophies, so that's what system I picked Fallout 3 up for.