skywolfblue said:
There are a number of things that were done in the past that we still have no clue how exactly they accomplished them (Stonehenge or the Easter Island Stones for example)
We actually know how both of those were built. In fact there's a guy on Youtube that has pretty much built Stonehenge in his backyard... by himself. Here:
As for the Easter Island moai, they were carved out of solidified volcanic ash quarries (you can still see plenty of half-finished ones there) and then moved into position with log rollers.
"But NoeL! There aren't any trees on Easter Island so they couldn't have used rollers! It could only have been ALIENS!!!1"
Actually, there's no trees
today because they cut them all down in order to move the moai! This is why many of the moai are half buried in the ground - without the tree roots holding everything together all the topsoil got washed downhill, burying the statues in the process.
But yes, I agree with you in principle.

Uncovering secrets of the past is cool.