Travel all the way to Xi'An
Return to Venice
Reach the throne of the Mongol Emperor
Reach Baghdad
Reach Delhi
Return to Venice with 100 Silk
Return to Venice with 100 Spices
Return to Venice with 100 Furs
Return to Venice with 100 Ivory
Have over 10,000 ducats
Continue travelling until 1300
Find the journey a little bit depressing
Contract a sickness on the journey
Run out of food on the road
Reach max speed level
Reach max carrying level
Reach max cooking level
Reach max camel limit level