Do good fences make good neighbors? In this BrainPOP movie, Tim and Moby investigate the biggest fence of 'em all: the Great Wall of China! You'll learn all about this gigantic defensive barrier--who built it, when it was built, and who it was defending against. Why are some parts of it better built than others? Why did construction on the wall stop in the 17th century? How high? How long? How wide? Find out the answers to these questions and more! Along the way, you'll learn about Chinese history, and how the Great Wall figures in it.