Economics of Money and Banking, taught by Perry Mehrling on Coursera:

https://www.coursera.org/learn/money-banking

It's just fantastic. He explains what money really is from the perspective of treating everyone as a bank. Also, lots of good history here including the history of central banking, the gold standard, and war finance.

Anyone who wants to understand money should take this course. It would be nice if more cryptocurrency enthusiasts learned this kind of monetary economics.