Why? Do you mostly decide what OS to use by how the name sounds? Should there be some sort of global name recognition contest to find names that don't make anyone feel uneasy about not knowing something? "OS X Great Pyramid of Giza" and "OS X Great Wall of China" are both a bit of a mouthful, though "OS X Stonehenge" has a nice ring to it.
I've lived in California all my life, and I had to go look up Mavericks to see where the name came from. A few weeks later, I happened across a surfing documentary that spent perhaps half its time telling the story of the Mavericks surfing spot, and it was quite fascinating. Learning things is fun. I didn't learn much from the name "Windows 7 Ultimate Home Premium Deluxe Sparkly Edition".