Choquequirao

Choquequirao (Southern Quechua: Chuqi K'iraw, Cradle of Gold) is a partly excavated ruined city of the Inca in the south of Peru. It bears a striking similarity in structure and architecture to Machu Picchu and is referred to as its 'sister'. Choquequirao receives far fewer tourists than its sister but the ruin is no less delightful and is a good alternative to the sometimes overcrowded Machu Picchu. Unlike Machupicchu, Choquequirao cannot be reached by train or bus. The only way to visit the site is to go on a scenic 2-day hike from outside Cusco
The ruins at Choquequirao are comprised of buildings and terraces at different levels from the lower level Sunch'u Pata to the truncated hill top. The hill top has been leveled and ringed with stones to form a platform of 30x50 meters wide
Choquequirao (3,085 m) is situated amongst the spurs of the Salkantay Mountain Range in the Province La Convención in the Region Cusco above the Valley of the river Río Apurímac. The entire complex encompasses 1,800 hectares of which 30-40% is uncovered

The site was most likely built during the reign of the Inca king Pachacuti Inca Yupanqui and is considered to be the last bastion of resistance and refuge of the Sons of the Sun who fled from the city of Cusco when it was under siege in 1535. Led by Manco Inca Yupanqui they took refuge in Choquequirao.
According to the Peruvian Tourism Office, "Choquequirao was probably one of the entrance check point to the Vilcabamba region, and also an administrative hub serving political, social and economic functions. Its urban design has followed the symbolic patterns of the imperial capital, with ritual places dedicated to the Sun (Inti) and the ancestors, to the earth, water and other divinities, with mansions for administrators and houses for artisans, warehouses, large dormitories or kallankas and farming terraces belonging to the Inca or the local people. Spreading over 700 meters, the ceremonial area drops as much as 65 meters from the elevated areas to the main square."
Presumably it was used as a check point for access to the Vilcabamba Area and as a cultural and religious center for the region. The city also played an important role as a link between the Amazon Jungle and the city of Cusco.