From 1925 to 1934 the tower was used by Citroen as a large billboard.
The name of the automobile company was installed on the facade of the tower in the form of 250 thousand light bulbs. The advertisement was registered into the Guinness Book of Records due to its size.
Bedouins also explain why Perta was a secret for so long.
The Nomads' descendants, who guarded the city's secret location, killed all foreigners who wandered into their land, and that is why the West never heard about Petra.