src: sinaisharm.com
The Blue Desert is an area of the Sinai Desert near the Red Sea resort of Dahab, where a number of rocks are painted blue. The climate max is 36*c
This piece of art was created in 1980 when, following the 1979 Egyptian-Israeli Peace Treaty Belgian artist Jean Verame visited Sinai to paint a line of peace. Verame gained the permission of Egyptian President Anwar Sadat and received a grant of ten tons of paint from the United Nations.
Jean Verame later created a similar installation near the village of Tafraout in southern Morocco.
Source of article : Wikipedia