Marco described live huge snakes and serpents. Wild elephant and plenty of unicorns
Marco didn't think that people will be interested in the Great Wall as he thought. The things mentioned would be the most used and Marco should've been able to use those skills. He also didn't learn Chinese.
The exhibit showed names spelled in Chinese. Marco went to China and ruled so he was important. Although Polo's name is now found
Polo's description of Angamanain showed the cruel generation ate everybody that they can catch
Polo failed to mention using chopsticks or drinking tea. The things mentioned would be the most used during that time. It should've been skills that he should learn.
Polo explained his name wasn't in the records because his name was a Mongol name. A person with a native tongue would have to read it