Lonely Planet review
This Quechua word loosely translates as the ‘Hitching Post of the Sun’ and refers to the carved rock pillar, often mistakenly called a sundial, which stands at the top of the Intihuatana hill. The Inca astronomers were able to predict the solstices using the angles of this pillar. Thus, they were able to claim control over the return of the lengthening summer days. Exactly how the pillar was used for these astronomical purposes remains unclear, but its elegant simplicity and high craftwork make it a highlight of the complex.