Lamps: you can find this little "artichoke" lamp on Etsy.
Wallpaper: You can DIY this project by hunting down a myriad of vintage maps and collaging them onto your wall or buy map wallpaper.
Furniture: I love this great project idea from Apartment Therapy. How to use your old atlases to update your old dresser.
Decor: I love these vintage map pillows. They would be perfect in our living room, or a great gift for a friend who's moving away.