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.
1949
1964
2007
1996
2009
1977
2017
2021
2022
1993
1938
2003
2005
1953
1986