Democratic Congressman John Dingell has represented the people of Michigan for 57 years, five months and 25 days. On Friday, he will become the longest-serving member of Congress. Robert Siegel talks with Dingell about his proudest moment in Congress and advice to younger members of Congress. ROBERT SIEGEL, HOST:
The Sahara Desert covers most of North Africa. The Sahara Desert is  the largest subtropical hot desert and third largest desert in the  world, after Antarctica and the Arct â¦ ic.The largest desert in the world is Antarctica which is not in  northern Africa.The second largest  desert in the world is the Sahara which is in northern Africa,he Sahara Desert is  the largest subtropical hot desert and third largest desert in the  world, after Antarctica and the Arct â¦ ic. The largest desert in the world is Antarctica which is not in  northern Africa. The second largest  desert in the world is the Sahara which is in northern Africa,
Algeria is the largest nation by size in both Africa and the Arab world, and most of the nation is covered by desert. (Reza/Getty Images) The city of Lubango, Angola, seen from atop the Tundavala Gap along the Serra da Leba mountain range, was home to Portuguese settlers in the 19th century.