The Great Wall of China, an iconic structure with a rich history, spans a total length of approximately 13,171 miles (21,196 kilometers). This measurement includes all sections ever built, including overlapping parts. The most well-known portion, the Ming Great Wall, measures about 5,500 miles (8,851.8 kilometers) long.

For more detailed information, you can refer to resources like Britannica or Travel China Guide.

Sources

Great Wall of China | Definition, History, Length, Map ... - BritannicaHow long is the Great Wall of China? Total Length is 21,196km10 Facts About The Great Wall Of China | HistoryExtraGoogle says the Great Wall of China is 13000 miles long. How can ...Great Wall of China - WikipediaWhat is the length of the Great Wall of China? Does it span ... - Quora10 Things to Know about the Great Wall of China

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