The Fed near us used to allow unguuided tours, which I found interesting, and they give you a bag of money when you depart.
Shredded of course.
You can watch autoguided pallets containing $5-20 million rolling past you (behind heavy glass). They have a panel on inflation, including the largest known note of any kind from Hungary, 1945-6.
Between the end of 1945 and July 1946, Hungary went through the highest inflation ever recorded. In 1944, the highest banknote value was 1,000 pengő. By the end of 1945, it was 10,000,000 pengő, and the highest value in mid-1946 was 100,000,000,000,000,000,000 (1020) pengő.