The term 'Old Section of Algiers' can be summarized by the crossword solution 'Kasbah, ' which is a type of fortified city found in North African countries such as Algeria. Kasbahs are typically built with high walls and towers, and they often contain mosques, palaces, and other important buildings. The Old Section of Algiers is an area of the city that contains many of these traditional structures, making it a popular tourist destination.