The Inti Raymi festival, or celebration of the sun, starts today in Cusco. It will continue through tomorrow. Although there are many festivals throughout the year in Peru, Inti Raymi is known as one of the most elaborate, and also as one of the oldest. The tradition was started by the Incas, and continues as a lasting historical ceremony. The most recent interpretation of the ceremony started in 1944, and is celebrated near the ruins of Sacsaywaman. Colorful costumes and traditional dances make this festival an impressive sight to see.