This is a collection of paintings of pyramids. They are mostly Egyptian, but some Mesoamerican pyramids are mixed in. Because a lot of mystical mumbo-jumbo surrounds pyramids they were harder to collect than I thought. There were an awful lot of images with UFOs hovering about, energy beams shooting out of them, and so forth. I ignored those.
To modern eyes the pyramids are evocative, but mysterious structures. Why were they built? This video discusses a theory about how the pyramids were intended to be used.
The original burial structure for pharaohs was a mastaba. It was a tomb surrounded by storage rooms. These rooms were full of supplies that the Pharoah would need in his afterlife. Of course, eternity is a long time, and the supplies would eventually run out, impoverishing our ghostly Pharaohs.
That wouldn't do. Contrary to the prevailing notion that pyramids were sealed to protect their wealth from grave robbers, pyramids and their associated temple complexes were designed to be accessible. Their storerooms would be ceremonially resupplied to assure the dear, departed Pharoah of a comfortable life beyond the veil. It was only when central authority began to collapse that pyramids were sealed to protect their interiors.
The above video discusses the robber's tunnel which was dug into the Great Pyramid of Giza to loot it. It seems like it must have been an ambitious undertaking. I wonder how the group that undertook it organized themselves, and how they protected the treasures they stole from the pyramid.
The fellow who made it runs a small YouTube channel about the pyramids. I find his videos very interesting. Below are a couple more.