Pyramid Head, Origin and History

Pyramid Head is a fictional monster, who wears a triangular helmet and wields a giant knife, from the video game and film series Silent Hill.

The Great Sphinx of Giza

Silent Hill Lore: Pyramid Head #1 Origins and Silent Hill 2

Silent Hill 2 remake pre-order lists a new origin story for Pyramid Head [UP: Apparently not. See threadmarks]

Pyramid Head — The Executioner - Official Dead by Daylight Wiki

The Great Sphinx of Giza

Kukulkan Pyramid

Unexpected' origin story of Egypt's Great Sphinx unearthed by NYU researchers

Pyramid Head, Wiki

Pyramid Head — The Executioner - Official Dead by Daylight Wiki

Olmec Colossal Heads

The Sphinx: The Mythical Creature in Ancient Egypt vs Greece

Uncovering Secrets of the Sphinx, History

Did Aliens Build the Pyramids? – SAPIENS

Teotihuacan (article)