Sven Hedin’s expeditions to Persia, Central Asia and Tibet:

Sven Hedin made two trips to Persia and three large one-man expeditions to Central Asia, only supported by local servants. The fourth expedition was very different to the others, since Hedin had a whole team of scientists with him and acted mostly as coordinator.

For a full and better functionality you can download and open Hedin’s routes in Google Earth:

exp_routes_v2.kml. (Download Google Earth for free here).