Which parts of China did Marco Polo visit on Kublai Khan’s missions?

Marco Polo served Kublai Khan on various fact-finding missions across the Mongol Empire. While his exact itinerary remains difficult to verify due to the nature of his book, Il milione, historical accounts highlight several key regions he visited:

• Southwestern China: Polo traveled to Yunnan and potentially as far as Tagaung in Myanmar.12
• Southeastern China: He explored the populous regions of the southeast, providing enthusiastic descriptions of the city of "Quinsay," known today as Hangzhou.12

Additionally, the Polos resided in the emperor's dominions, which included North China (Cathay) and South China (Mangi), moving between the summer court at Shangdu and the winter residence in Beijing. While some versions of his narrative suggest he governed the city of Yangzhou for three years, this claim is widely considered dubious by historians.1