This is a 100 trillion Zimbabwean dollar banknote issued by the Reserve Bank of Zimbabwe in 2008.
It was printed during one of the worst hyperinflation crises in modern history, when prices doubled almost daily and the government needed massive denominations to keep up.
The front of the note features the famous Chiremba balancing rocks, and the reverse displays Victoria Falls.
Today, the note is worth very little in actual currency exchange but has become a sought-after collector's item.
...