It is a type of KEYSTONE.
Found the image while using gOOgle to search for the KEYSTONE.
Q said - find the KEYSTONE.
It’s shape lead me to HISTORY.COM
Q -
What is a keystone?
What is the keystone?
Think circle.
Expand your thinking.
Take multiple paths.
One connects to another.
Learn to read the map.
The map is the key.
Find the keystone.
What holds everything together?
>>>>
Where is it ALL stored?
Circle > history repeating
Take multiple paths.
One connects to another.> no matter what happens history still repeats.
Learn to read the map. > map = history > do not be EXACT > [similar]
>>>>>>>>
What holds everything together?
The KEYSTONE.
As xone pointed out it’s a landscaping retaining wall block. I can see the similarity to the history.com logo. The image appears to be from a company called keystone.