How we recreated a lost African city with laser technology: LiDAR, was used to "redraw" the remains of the city, along the lower western slopes of the Suikerbosrand hills near Johannesburg. Karim SadrThere are lost cities all over the world. Some, like the remains of Mayan cities hidden beneath a thick canopy of rainforest in Mesoamerica, are found with the help of … [Read more...] about How we recreated a lost African city with laser technology | The Conversation