Wikipedia
Cochasquí is the largest Pre-Columbian archaeological site in Ecuador. The site with a remarkable view - which was helpful for astronomic observations - lies some 52 km north of Quito in Pichincha Province at 3100 meters above sea level.
The purpose of the site is not absolutely clear, but on pyramid 13 it is obvious that it served as an astronomic oberservatory. Other sites such as Catequilla lie in distinctly calendary relevant directions. It is believed to serve as a ceremonial centre for the ancient Quito culture.
Fifteen pyramids and a minimum of 14 tombs are located on a roughly area. Nine of the pyramids include ramps of up to 290 yards of length. Pyramide 5, of which the base was excavated, reaches a height of 16 yards. Most pyramids are completely covered with vegetation. Pyramide 9 shows a wall in stept, built in Cangahua rock.
The entrance fee includes a guided tour in the area and the small museum.