a delightful web app that overlays your GPS location onto georeferenced historical maps. Take Antwerp’s 1565 city map by Virgilius Bononiensis, a massive 120×265 cm woodcut. With Allmaps Here ...
“It fills in the map a lot, in areas where we desperately need more information.” Phone data could reduce GPS errors by 10–20% in some areas, and more in underserved regions, estimates ...