2. Terraces: A system of agricultural terraces built on steep slopes to increase land for farming.
3. Andean Road System: An extensive network of roads that connected the Inca Empire, spanning thousands of kilometers.
4. Freeze Drying: A method of preserving food by freeze-drying it in the high Andes mountains.
5. Quinoa: A nutritious grain native to the Andes, cultivated and consumed by the Incas.
6. Potato: The Incas cultivated over 200 varieties of potatoes, which were a staple food in their diet.
7. Inca Bridge: A unique suspension bridge design made from woven ropes, used for crossing rivers and gorges.
8. Stonework: The Incas were masters of stonework, building impressive structures like Machu Picchu and Sacsayhuaman.
9. Metallurgy: The Incas were skilled metallurgists, working with gold, silver, and bronze to create intricate jewelry and tools.
10. Astronomy: The Incas had a sophisticated understanding of astronomy, using it for timekeeping and predicting celestial events.