Although Alexander’s campaign has received less attention than it might from the perspective of geographical studies, the image of Alexander himself as an explorer has, paradoxically, enjoyed great success in the modern historiography. This is partly to be explained by the widespread belief that Aristotle had a great influence on his student. From this perspective, the image of Alexander as an intellectual and a friend of knowledge fits perfectly with that of an explorer eager to know the world. In the eyes of many scholars, an assumption of this sort has allowed Alexander to become more than a mere conqueror. A new way of understanding this problem is proposed here, since we consider that both Alexander the conqueror and Alexander the explorer were essential and indissociable elements of Alexander the king, that is to say, they were indispensable characteristics of any Argead monarch, and these two facets of rulership must be studied together. In other words, knowing the world was one more way to conquer it and rule it.