Here is an article I find very interesting. While it lacks the credibility of a mainstream peer reviewed science journal, the author raises some interesting points. The authors own agenda is fairly transparent and when you see the titles of the books he has authored, my guess is he is an alien interventionaist type of theorist. Nevertheless, he raises some interesting questions and presents some empirically testable and observable anomalies at an ancient site called Baalbek.
See the link below ..............
http://www.world-mysteries.com/mpl_5b1.htm
These sorts of ancient site level artefacts at the very least seem unusual to me. Based on todays dominant archeological paradigm of slaves and pulley systems used by the Romans etc I cannot see how these types of stones were moved and placed with such precision given their size and the unusual location.
Remember the scientific method is in part about testing hypotheses and developing alternative theories when existing theories fail to account for observable facts, this information seems to have slipped under the dominant archeological paradigm

I see a more plausible explanation is that anti-gravity systems were used to lift these stones. But then again, if I was arrogant enough, I would think that nothing like this is possible simply because it is not developed yet.
Our knowledge and understanding is contextual and a big piece of that context is temporal. Recent cognitive theories that have been adapted to explain the workings of the brain are really rooted in our understanding and development of computer technology. When the dominant psychological paradigm in the world was religion, people with mental illness were believed to be possessed by demons and or satan. This has changed to a reductionist chemical based understanding of the brain today, because we have the possibility of measuring and observing this with brain imaging.
Science is ultimately limited by its capacity to observe and measure things.
Before copernicus, you would have been sure to find the leading minds and thinkers of the day posting great in depth theories to explain why the sun revolved around the earth.
We are nothing else, if not shaped in our thinking by the dominant paradigms of the time and place we are born and live in.
I guess, and I may be wrong here, because every scientist I have met is hell bent on criticising anyone or any idea that brings into question the dominant paradigms of the scientific community
Rishmash