Yip. For sure it's aliens responsible for everything on Earth. from canals & the stone wheel to smartphones and space telescopes. What a sci-fi landfill of garbage, this show presents. It takes history, twists-it with glorious fantasy & creativeness. After all, us humans are far too stupid to have created anything on our very own accord.
The series, definitely gives me a good laugh. And I watched some of season one, and cannot believe it's still creating new episodes. Proof, that the History Channel, only cares about ratings and not actual down-to-Earth history.
I'd continue. But my home, created from materials reverse-engineered from aliens(wood), is getting cold & I gotta start the wood-burning stove, coincidentally another piece of alien technology...reverse-engineered.
As for Stonehenge(the pride of Ancient alien episodes), don't ya think people built-it, with the thinking of, "Let's build something completely useless, that'll boggle people for centuries." Yip. They did.