It looks especially cool if you switch the overlay to "Google Satellite". You can see the different scale levels a bit better. https://mrgris.com/projects/merc

It looks especially cool if you switch the overlay to "Google Satellite". You can see the different scale levels a bit better. https://mrgris.com/projects/merc-extreme/#a473b325@55.86116,-4.25017 https://mrgris.com/projects/merc-extreme/#a473b325@55.86116,... EDIT: you can also click the "folded map icon" button and you see the coordinates transformed back into normal ones and shown on a map with X and Y corresponding to radius and azimuth from the centre. Extremely cool!