The Inca constructed some of the most intriguing and iconic ancient cities and sites anywhere in the world. Many of their walls and buildings were created with massive blocks of stone that fit together perfectly without the use of mortar. The types of stonecutting and construction techniques seen across this region would require modern tools and heavy machinery, so how did they do it? With all the debate, only one thing is sure, no study of the Inca Empire would be complete without taking a closer look at their most astounding architectural, construction, and technological advancements.