I really like this idea for an office or a library. Convert an old globe into a pendant light! Seems easy enough. Buy a lamp kit at your local hardware store, take apart a globe and drill a larger hole for the light. Put remainder of light together.
You could hang pictures of pictures from your trip on the location. Not sure how it would look on a neutral-colored wall, but the idea is great. You could probably spray paint the cork and get a cool effect.
Creative Uses for Old Maps bookcase DIY - What a wonderful accent piece! Just cover the inside of an Old Bookshelf with Old Maps and create a focal point for your room. Maybe not a map but another poster of some kind.
DIY: Mod podge a map to a lampshade.I really like the many suggestions for recycling old maps and atlases. You could even concentrate your shade on specific locations that someone likes to personalize the shade for them.