Where's George is a fun game where people all over America write down information about dollar bills and then track where the bills go as they are spent and traded. It's called "Where's George" because George Washington's face is on the front of every dollar bill.
When people write on a bill, they might put a website address, like www.wheresgeorge.com, or a phone number. Then, they might put a stamp or a special handwriting on the bill to make sure people know it's part of the Where's George game.
When someone else gets the bill and sees the website or phone number, they can go to the website or call the number to report where they got the bill from and where they are spending it. They might say they got the bill from a store in California and then spent it at a restaurant in New York.
Over time, people can see where all of the bills have been. Some bills might travel all across the country, while others might only go a few towns over. It's a fun way to see where your money goes and where other people are from.