Had that stretch where a hundred trillion dollar note wouldn't even buy you a loaf of bread.
Fun fact: During its 2008 hyperinflation, the central bank printed a single banknote worth 100 trillion dollars.
Skipped the whole tallest-building arms race the rest of the Gulf got into, and fair play to them.
Fun fact: Oman's Majlis al Jinn cave chamber is large enough to fit several Boeing 747s inside.