Yea...with the help of Zeuss's "thunderbolt" scorching his arse...

 Of course human civilizations existed in the past that had considerable knowledge and technology. But what should really be the dead giveaway with regards to the building of these structures are the innumerable scriptures and tablets bluntly stating that the "God's" gave them their technology and oversaw the construction.

Here's the construction of the Tower of Bable:

Teaching knowledge and technology:

And look at the size of their leaders' skulls, who were hybrid extraterrestrials: