Logo commemorating the 100 anniversary of discovery of Machu Picchu Machu Picchu centennial logo. A logo commemorating the 100th anniversary of the scientific discovery of Machu Picchu will be screened during commercial breaks on the National Geographic Channel this week. All this week the National Geographic Channel is airing a series of documentaries devoted to Peru’s world famous attractions including Machu Picchu, Nazca Lines and the rainforest of Peru. http://ping.fm/mG14b