Answer:
Asia
Step-by-step explanation:
The Mongol Empire is considered to be one of the largest in history in continuous land extension: it ranged from the western border of Germany to the Korean Peninsula, and from the Arctic Ocean to Turkey and the Persian Gulf, dominating about a third of the population total of the planet at the time. However, the region with the most territories conquered by the Mongols was Asia, as we can see from the map.