Incan Technology

Metalwork

The incans had metalworking processes which allowed them to create fine necklaces and earrings, as well as tools for working with stone and wood. One of the widely used tools for the construction of Machu Picchu was the crowbar

Museum display case of copper and bronze crowbars and levers, used for levering rock blocks into place when building walls at Machu Picchu
Three small metal pins mounted upright in a museum display case
A finely laminated gold bracelet, the only gold object found at Machu Picchu, displayed in a museum case

Pottery

They also had pottery

Museum display of stone bowls, mortars, and grinding stones used for milling

The best-known example of Incan engineering is the stonework at Cusco and Machu Picchu.