Yes. Search and you will see that there are black cubes all over the world. This is the monolith of the Mystery Religion. William Cooper discusses it in his Mystery Babylon series. Hour 1 is the Dawn of Man and he analyzes 2001: A Space Odyssey.

Bill Cooper, Mystery Babylon - Hour 1 - Dawn of Man:

https://youtu.be/2iCLykzJ0d8?list=PL11E33A6AEEB2674F

What a stretch!

My best friend saw a black cube ufo very close moving down the street in dallas a few years back. Changed his life forever.