For our third installment in the series of swapcasts we are doing with Ben from UnchartedX, we are joined by Matt from the excellent Ancient Architects YouTube channel. The four of us take a look at Ben's raw footage of the amazing and mysterious megalithic site of Sacsayhuaman in Peru, as well as the remains of beautiful megalithic, polygonal, "cyclopean" masonry in the city of Cuzco below.

Unlike Egypt, there is far less information available about these sites, what their true origins are, who built them, and why. We ponder these questions, as well as the questions of how these sites were constructed, as they seem almost unbelievable in the details of the masonry....and yet there they stand. Someone did it. Who they were and how they did it are still mysteries. The video for this episode will be released on all of our YouTube channels, so stay tuned!