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.
1992
2005
2002
1991
2004
2025
1961
2013
1985
2024
2021
1995
1965
1983
2011