For table top gaming you need terrain. While piles of books can do the trick, some well designed terrain looks better and makes the game much more enjoyable, just like painted miniatures. You can either buy ready made terrain or make your own - I went the latter route. In the following galleries you will find some of the results.
Jungle terrain - lots of exotic plants, hills and, you guessed it, jungle
Barricades and obstacles for Warhammer 40k like minefields and tank traps
Mordheim terrain - buildings and barricades for Mordheim that I also use for Warhammer Fantasy at times