Ancient Civilization cover up?

Ancient Civilization's older than Egypt?

Lately Ive been watching a lot of new youtube video's about ancient Megalithic stone blocks which is part of ancient civilizations. I'm not typically the conspiracy theory type but I do find it interesting how modern mainstream media doesn't talk much about it. It seems to me that there is overwhelming evidence that ancient civilizations are way older than anyone ever imagined but because it goes against mainstream history it gets covered up by mainstream media. 

I believe that over the next few years we are going to learn much more about much older civilization and evidence will continue to be unearthed. Our past is even more incredible than we thought.