Yes, things like this and those you mentioned just kind of boggle the mind on how they were able to accomplish them based on what we believe they had available to work with at the time.
If they were able to chart the moon, stars and planets I don't believe that them having a transit for surveying purposes would be out of the realm of possibility but we never here that mentioned by the people who write about these ancient civilizations. I think that are history writers live in a state of denial when it comes to writing the history of ancient civilizations.