Hilarious illustrations, captions, and sidebars show the toil and suffering involved in building the Great Wall of China in the third century BC, removing any glamour thought to be experienced by the slaves who built it. Simultaneous.Hilarious illustrations, captions, and sidebars show the toil and suffering involved in building the Great Wall of China in the third century BC, removing any glamour thought to be experienced by the slaves who built it. Simultaneous.