A kaleidoscope of currency reveals what humans have valued over time. Hi-resolution scans of banknotes from 23 countries ranging from the 1800s to the modern-day. Machine learning programs were used to zoom in on the intricacies of the engravings.
1996
2018
1980
2000
—
2002
2023
2014
2008
2022
2019
2017
2007
2024