What unusual things did Marco Polo talk about?

Marco Polo and his son Niccolo saw a lot – oil fountains, huge sheep with twisted horns 1.5 meters long, etc., but in China they saw and were amazed – 1. Paper money that was used in China for many centuries before their appearance on West; 2. Chinese printed books, far ahead of the emergence of typography in Europe; 3. Ginger, an exquisite spice highly prized in the West; 4. Saffron, which was used to improve the taste and color of food; 5. “Pounded earth” – clay, from which the Chinese made beautiful ceramic vessels; 6. Gunpowder is a Chinese invention that was used both in war and for fireworks.