The British Library is making available 40,000 maps dating between 1500 and 1824, which will be freely available online for the first time. They are part of the Topographical Collection of King George III (K. Top), and included maps, atlases, architectural drawings, cartoons and watercolours.
The first batch of 18,000 images are now available for anyone to view online via the British Library’s digital Flickr Commons collection.
https://www.medievalists.net/2020/11/40000-early-modern-maps/