In addition to the standard Delux Monopoly games, Parker Brothers has also liscensed many Special Edition Monopoly games. Some of them are military themed, like the US Marines Monopoly, the US Air Force Monopoly, and the US Army Monopoly. Others are Geographically themed, like the America Monopoly Special Edition, and Puerto Rico Monopoly Special Edition.

I personally like the really novel Monpoly games like the Monopoly Pink Boutique Edition and the Elvis Monopoly Edition. Which ever edition that you're searching for, most delux and special editions were only manufactured for a limited time, so once they're sold out, they're no longer available to buy new in stores, so look on eBay, and I bet you'll find them!