The golden capstone

Golden capstone glinting bright
shrouded in questions...
sits atop pyramid
capstone of Khufu
ancient, glittering, smooth.
History enhances it.
Created for the pharoahs
Disappeared to where no-one knows...
Your mark is imprinted at Giza.
It's special because it's a wonder of the world.
They are special because they're history.
I don't know why history is special
I just like it.