*Agriculture:* Both the Aztecs and Incas were skilled farmers. They cultivated a wide variety of crops, including maize (corn), beans, and potatoes. They also used irrigation systems to ensure a steady supply of water for their crops.
*Architecture:* The Aztecs and Incas were both masters of architecture. They built large pyramids, temples, and palaces. Their buildings were often decorated with elaborate carvings and murals.
*Religion:* Both the Aztecs and Incas had polytheistic religions. They worshipped many gods and goddesses, and they believed in the importance of human sacrifice to please the gods.
*Government:* The Aztecs and Incas both had highly centralized governments. The Aztecs were ruled by an emperor, while the Incas were ruled by a Sapa Inca. The emperor or Sapa Inca had absolute power, and their decisions were carried out by a large bureaucracy.
*Military:* The Aztecs and Incas were both skilled warriors. They had large armies that were well-trained and disciplined. They used a variety of weapons, including bows and arrows, spears, and clubs.
*Social Structure:* Both the Aztecs and Incas had a hierarchical social structure. The upper classes were made up of nobles and priests, while the lower classes were made up of commoners and slaves.
*Economic Systems:* Both the Aztecs and Incas had complex economic systems. They used a form of currency called cacao beans or quipus (Inca). They also engaged in long-distance trade.