Their legacy is Inca Stonemasonry
Inca Stonemasonry is well known, isn’t it? They were constructed without cement, which makes this part of the Inca civilization fascinating. People employed a network of ropes and poles to bring enormous pieces of rock into position to construct the building.
This technique is unique since it has a unique locking mechanism for each stone. Natural disasters like earthquakes may have made them able to live through them. After an earthquake, the stones would move back to where they were before. Isn’t it amazing?