Saudi Arabia is reviving its architectural heritage ... reflecting the high population density of these urban centres. A distinctive feature of these structures, primarily built from Red Sea ...

it is the area on this map with the largest gap between its population ranking and its population density ranking. India and China, which when combined account for almost 3 billion people ...

RIYADH, May 31 (Reuters) - The population of Saudi Arabia has reached 32.2 million, 42% of whom are foreign nationals with 63% of Saudis under age 30, the country's general authority for ...