Intihuatana, hitching post of sun, Inca site in the Urubamba Valley, Pisac, Peru, South America

Machu Picchu the Intihuatana, the site's most sacred shrine, likely served for making astronomical observations and calculations, Highlands, Peru

Inca ruins at Pisac view of the main complex and the Intihuatana stone in the main temple, Cuzco area, Highlands, Peru

Machu Picchu the Intihuatana, site's most sacred shrine and was used to tell the time of year, Highlands, Peru

Machu Picchu view from the Intihuatana to the temples around the Sacred Plaza with terraced fields beyond, Highlands, Peru

Machu Picchu the Intihuatana, site's most sacred shrine and was used to tell the time of year, Highlands, Peru

Inca ruins at Pisac view of main complex, the Intihuatana Temple and surrounding terraces and Urubamba River, Cuzco area, Highlands, Peru