"The Great Builders"

What’s the goal in life? Why are we here? What are we supposed to achieve and how? Do the goverments keep secrets from the people? Why? Is there life in other planet? We are humans there are things we aren’t suppose to understand…or are we?
Pyramids all over the world, you know what that means?
There was an old civilization capable of traveling around the world while constructing huges structures. Why we don't listen about this on the news? Why they still teach our kids that the egyptians were the only one that created them.
Even on the present day, humanity can't replicate the structures.