- "Sapa Inkakuna". Painting from the 18th century. It portrays the Inca royal lineage and belongs to the Cusco School, unknown author.
- Un peuple en guerre contre le temps, William Sullivan, Ed. du Rocher, 2000, (ISBN 2-268-03533-6), 266 p. (La civilisation inca par le prisme de sa pensée religieuse).
- With their capital city of Cusco at the heart of their empire, the Incas excelled in various fields, such as engineering, agriculture, and art.
- The Inca civilation was in full bloom. ... According to Incas History, Quechuas were most prominent for establishing the Inca Empire in pre-Columbian America.
- The Incas believed that their ruler, the Sapa Inca, was the son of the sun god, Inti. The Incas built an extensive system of roads, spanning over 14,000 miles.
- Little by little, in a process that lasted until the 15th century, the warrior strength and supremacy of the Incas led the Empire to reach its greatest extent.
- The famous Inca trails crisscross the entire Empire, and legend has it that they made it possible for the Inca in Cusco to catch fresh fish from the Pacific daily.
- The Incas maintained their empire for around 100 years and their success was mainly due to conquering neighboring tribes and then expanding out.
- The Inca civilization, which flourished prior to the arrival of Christopher Columbus, was the most extensive and expansive cultural complex in the Americas.
- History's Turning Points: The Conquest of the Incas [History Channel] (25:07 min.) The 4 day Inca Trail trek to Machu Picchu, Peru (25:46 min.)