4 000 000 Lira Atatürk

Issued during Turkey's catastrophic inflation crisis of the late 1990s, when the lira was losing value so rapidly that the government was simultaneously printing banknotes in the billions while minting commemorative coins denominated in the millions. The four-million-lira face value was not hyperbole — it was roughly equivalent to just a few US dollars at the time of issue.

Turkey would redenominate the entire currency in 2005, stripping six zeros to create the New Turkish Lira and effectively erasing denominations like this one from the monetary record.