A web site where you can track money that has been registered, with www.wheresgeorge.com to see where that bill has been registered before. When someone else registeres a bill you have already registered it will let you know where that bill was last entered, how far it has traveled and how long it took. It can be registered anywhere in the world. It is a free site to join and you can read other people's profile and where their bills have been and find out some interesting things about money.
I got a $5.00 bill and entered it at www.wheresgeorge.com and it had been registered in TEXAS where it started then went to EUROPE, ST. THOMAS,and IOWA. "I dont know why anyone would want to visit Iowa. There isn't anything here"