In Chicago, the Federal Reserve Bank has a nice exhibit. The have three $1 million displays. One is a rotating cube of $1 packs. Another is $1 million of $20 packs underneath a glass dome. The last one is a suitcase of packs of $100 in which you can take a picture of yourself with it (the photo is FREE). They also have 18 notes for you to try to determine if they are real or counterfeit. I got 12 of the 18 correct.

I am attaching pictures of all three exhibits. The last one is of my oldest son (who lives in Chicago), my wife, and the guy with the Berlin shirt and hat is me.