Answer:
1. construction of the Great Wall-Han China
2.the great city of Machu Picchu-Ancient Inca
3.the great temple at Palenque, built by Pacal-Ancient Maya
4. invention of the sundial and seismograph-Ancient Greece
5.accurate calendars and astronomical observatories- Ancient Maya
6.elaborate roads and bridges- Ancient Inca
7. domestication of animals-Ancient Mesopotamians
8.invention of Hindu-Arabic numerals-Gupta Empire
9.the great city of Tenochtitlan-Ancient Aztec
hope this helps, i worked hard to help u
Explanation:
