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.
2007
2015
1957
1945
2010
2020
1962
2008
2013
2019
2011
2012
2003
1965
2014
1929
2009