There are elaborately constructed stone structures throughout New England and the Northeast.
They're usually found in relatively inaccessible places, far away from water and settlements, and often deep in the woods and/or in mountainous areas.
And they're all line up perfectly with astronomical phenomena.
So what do traditional archeologists and historians say about them?
"They're root cellars."
First of all NONE of these structures would function well as root cellars.
Second, building a root cellar is a simple job, one not requiring multi-ton stone arch roofs.
Why do mainstream scientists lie about this?
By the way, this speaker - who does occasionally go pretty far out - had his very popular TEDX talk banned by TED headquarters.
On another note, apparently the looting of mounds and other mysterious structure appears to have been a national pastime years ago. The story of just one of these structures written about here: "Looting Spiro Mounds: An American King Tut's Tomb "