How were you able to make maps of places you might have never been to ?

Question: How were you able to make maps of places you might have never been to ?
- Keywords:
  maps
Asked by 946bm1926 to Peter on 31 May 2019.
- Peter Macharia answered on 31 May 2019:
  
  We have databases of data that I can retrieve any time for all over the world to make the maps. Also, there are online data that you can download and map maps. The science and art of mapmaking is Cartography offered as part of a GIS or geomatic class and in some cases a degree

Question: How were you able to make maps of places you might have never been to ?