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.
1999
2003
2023
2017
2006
—
2009
2025
2002
2020
2026
2005
2019
2007