One of the greatest numismatic challenges is to collect at least one coin from every country. Just how many countries are there anyway? Well, right now there are 195. That’s a lot of coins. What a great collection that would be! One of the best conversation starters is a globe, and a world coin collection. School teachers can make a great history and geography course by utilizing a collection like this. This would make a great school project for not only the education, but at the end of the class they could sell it on ebay or locally to raise money for whatever cause they support.