Across
- 4. New Aztec city
- 5. Planted gardens between Gila and Salt rivers
- 7. Mayan word for "flat region"
- 8. Largest city
- 9. means Earth-shaker
- 12. Built a civilization in the rain forests
- 13. Conquered the Aztecs
Down
- 1. Farming began here
- 2. Used to calculate the records and building plans
- 3. Huge sheet of ice
- 4. Built the first well planned city
- 6. Built a far-reaching trading empire
- 9. Conquered Incan civilization
- 10. Believed he reached Asia
- 11. Nomad warriors