In this corner ... Egyptian slaves and citizens, merchants and master masons. In the other? Shape Shifting Alien Lizard People!
Who built the Sphinx? Does the earth flip over like a top every few thousand years, destroying whole civilizations? And what's with the whole Flat Earth thing, anyway?
This episode, Graham looks at some of the theories about who built the sphinx, and other ancient monuments, after a request from a listener.
And if you have suggestions for a topic or just want to get in touch you can use our ideas form just over on the other tab!