The Kingdom of the Nabateans, from Hegra to Medain Saleh (2004)

The gigantic geoglyphs engraved in the soil of the Pampa never cease to intrigue explorers and archaeologists. In the Autumn of '98, two passionate archaeologists, Giuseppe Orefici and Egle Barone-Visigalli, decided to undertake an impressive excavation campaign on the huge site of Cacuachi in an attempt to solve the mysteries of this little-known civilization.