I have just returned from Peru and Bolivia, and while there I examined many ancient sites.
The Creation of these sites was impressive.
The essential medium is Stone, very dense stone, like granite - but there were other types used as well. The rocks were quarried, broken up into blocks, moved to their location - size and shape fitted and cut to specifics and then placed. The best theory for how the rock is cut so precisely is that the Incas used Onyx tools. But I did hear others like: ancient cutting machines, and plant and herb concoctions that soften rock for shaping.
The technology for moving the giant stones is unknown, but the best one I heard was that they received ancient technology from the origin civilization known as Lemuria. The technology requires the user is 'in tune' with natural forces, and then a combination of Mind and Sound, plus a tool used for focusing these enerigies allowed the ancient peoples to levitate and move the blocks ( this is also seen in Egyptian Stone block creation.)
I travelled with a retired geologist who was constantly puzzled and amazed by how the rocks were cut, shaped and moved.
The most mystical of the sites was Tiwanaku (Tihuanaco) , in Bolivia - it may be the oldest archeological site on earth; but like so much about this place, its not confirmed. You can carbon date the stone work but it doesn't tell you when it was quarried :(
Here is a photo I took of some impressive Blocks at a temple adjacent to Tiwanaku known as PumaPunku :
Cut Blocks sitting atop a giant slab Block. Our Tour guide informed us that these rocks were quarried 30km north of the site.
There are many creative tributaries that run through a creation of this size, importance and complexity, so I will leave it with a quick look at the Incan Deity Viracocha (Apu Qun Tiqsi Wiraqutra) depicted here and throughout Tiwanaku:
Our Tour Guide indicated that legends say he was a human with amazing knowledge of how to live in harmony with the natural world.