The Great Wall - American visitor Marilyn Shea gives her and her companion's reactions to the longest boundary wall on earth, together with an illustrated history. Great Wall of China - Images of the Great Wall from space by NASA Radar. The Great Wall - A history of this amazing construction with illustrations and maps from Travel China Guide. Includes descriptions of individual sections and some legends of the wall. The Great Wall - Illustrated guide from BeijingTrip to the history of this gigantic defensive project begun as early as the 7th century B.C. Overview and pages on each section of the wall. The Great Wall - A virtual tour from China Vista of this huge, serrated wall that snakes along the mountains. The Great Wall Post - A Chinese society concerned with the protection of this World Heritage monument. Includes a history, tour, and some atmospheric photographs and drawings. Great Wall Photos - Pictures of various sections of the Great Wall - from the mountainous northeast to the desert western regions. Simatai Great Wall - Provides basic information on Simatai Great Wall, including history, travel tips, and travel facility.