Explore the ancient Inca fortress of Sacsayhuamán, a testament to Inca engineering perched above Cuzco. Built in the 15th century under Pachacuti Inca Yupanqui, it served both defensive and ceremonial roles. Huge stones, some weighing 200 tons, were expertly transported over 22 miles without mortar, ensuring seismic resilience. This architectural marvel, resembling a puma's head, showcases Inca tactical prowess and spiritual significance. Learn about its construction involving 20,000 workers under four main architects. Despite the Spanish conquest's impact, Sacsayhuamán remains a UNESCO World Heritage site, hosting events like the Inti Raymi and Warachikuy festivals. Discover how this enduring symbol of Inca resilience continues to connect Peruvians to their rich heritage.