What a mouthful!! It is pronounced O-yan-tay-tam-bo.
The Quechua people used this as a fortresses, residential, and ceremonial center. It includes great examples of stone construction including use of huge blocks of granite. By "huge" we mean that the rock Ms. Sager and Tigger are in front of is twice as tall as Ms. Sager. The granite blocks were transported from over 6 kilometers away. They were expertly crafted and fitted so tightly together that not even a piece of paper will go through it. The surfaces of the walls were originally covered in gold.
Getting to the top of this fortress was quite a climb - 266 steps!!!!!! The steps are often more than a foot high. This is equivalent to a 22 story building.
The town below has been continuously occupied since the 1200's AD. It is currently a thriving market place and the starting point for those hiking the Inka Trail to Machu Picchu.