We visited one of those when I was a kid....I don't remember which one. I recall they had a $10k bill on display, which blew my mind. The Googlez tells me that's the largest bill ever printed for public circulation, but all bills over $100 were discontinued in 1969. Which makes me wonder, if you still had one of those, could you actually do anything with it today? Presumably you could deposit it in a bank, but my time working for a bank years ago makes me think they would probably immediately send it to the Feds along with the damaged/destroyed bills they turn in.
Also says the largest bill ever printed (not for public use) was a $100k bill, only used for transactions between Federal Reserve banks.
Google's AI is terrible, so I'd be inclined to read more about it before I unconditionally accept any of that.