Great Wall of China Definition, History, Length, Map, Location

Great Wall of China, an extensive bulwark erected in ancient China, one of the largest building-construction projects ever undertaken. It actually consists of numerous walls—many of them parallel to each other—built over some two millennia across northern China and southern Mongolia.

The Great Wall of China

Ancient Great Wall building materials reveal environmental changes associated with oases in northwestern China

Beijing Travel Guide

Great Wall rekindles history row

Walking the Great Wall of China: How did Dong Yao-hui cover it all?

Great Wall History Map

Great Wall of China: photo, its length and construction history

Great Wall of China - Length, Map & Facts

Great Wall

Ancient China: The Great Wall

Great Wall of China: Facts, History, Maps, Travel Tips, Tours