Stephen Vanderhart (Co-Owner, Stone Valley Materials)
3.6 – Aliens & Ancient Engineers (9.1.11)
5.3 – Alien Power Plants (1.4.13)
|In Aliens & Ancient Engineers, Ollantaytambo…
…But how could the earliest humans on earth have produced such astonishing stonework with massive interlocking blocks precisely fitted together? Or have constructed aqueducts and irrigation systems that still function today? Or have moved and set colossal stones of granite, each weighing more than 50 tons?
 Prometheus Entertainment. (2011). Ancient Aliens: 3.6 – Aliens & Ancient Engineers. [DVD Footage: Ollantaytambo]. Los Angeles, CA: A&E Networks, LLC / History™.