inca civilization

Discussions on WindowsForum.com about Inca civilization focus on the remarkable stonework and construction techniques found at sites like Sacsayhuaman, Ollantaytambo, and Cuzco. Topics include the precision cutting of hard stones such as diorite, the use of diamond tools, and theories about advanced ancient technology. Some threads question whether these structures were made by the Inca or by earlier cultures, and explore strange phenomena and possible machines used in ancient Peru. The content is centered on archaeological mysteries and alternative history perspectives.