If you're interested in maps, you may be interested to know that the May-June 2021 issue of the Library of Congress Magazine (LCM)
has several articles about them.
"Vol. 10 No. 2: May-June 2021
Mapping Our Place in the World
Throughout history, cartography has revealed the way humans perceive themselves; the collections of the Geography and Map Division illustrate how those perceptions have changed over the centuries. Also, using GIS to map the COVID-19 pandemic, history’s first atlas, and hyperspectral imaging reveals hidden stories of historical maps.
LCM Website -- [www.loc.gov
May-June 2021 issue (PDF) -- [www.loc.gov
And, for AP's rr purists --
railroad maps site:[www.loc.gov]