1. Advanced architecture and engineering:
- Both the Inca and Maya civilizations constructed impressive architectural structures using advanced techniques. The Incas built massive stone structures like Machu Picchu, while the Mayas built towering temples and pyramids like Tikal.
2. Impressive irrigation systems:
- The Inca managed the world's most extensive and highly sophisticated hydraulic system. The Maya also showed considerable skills in irrigation to support agriculture.
3. Complex social and political structures:
- The Inca and Maya civilizations had well-organized social structures with a hierarchical system led by a powerful ruler. They developed systems of governance and administration that allowed them to maintain control over vast territories.