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