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.
2003
1987
2009
2001
1990
2019
2016
2017
1988
2002
2008
1954
1951
2010
2005
