Riyadh city does not have any natural resources at all . it is different from any other Saudi cities it is not by the coast sides . it is does not have a suitable climate for agriculture it has no oil nor natural gases resources . it does not have nice weather. for decays ..it coasted billions and billions of $ to build and maintain this city that came from nothing in the middle of nowhere . at Protected content because of Gulf war 2 ..people escaped back to their home areas and countries ...the population ratio and economic sharply dropped . I always ask myself this question : what would it be for Riyadh if the oil run out ??