Sometimes, the economy is not faring well, sometime it’s too good. In both cases, it may lead to astonishing bills. I found some cases, I really loved.
The biggest single US dollar bill
This is not even really a bill since it’s more a tool to manage gold exchanges in an economy that was based on gold: a gold certificate. It was never circulated in the public since 1034, and is only visible in museums.
The weird Zimbabwe bills
In a country where the economy totally collapsed, the Zimbabwe dollar has no value left: Inflation reached several tens of thousands of percents (much more than what hit the German economy of the 30’s), crushing the mere value of any bill in just days.
As a matter of fact, this 10 million dollar bill does not allow you to pay anything (valued a few euros a few months ago, it’s really worthless now).