The Great Wall of China
The Great Wall of China was built over an extended period of time ranging between 5th century BC and the 16th century AD. The wall stretches over 4,000 miles and was originally built to protect the northern borders from attacks from Xiongnu.
The wall was built in sections, the most famous of which was built around 206 BC by Qin Shi Huang, the first Chinese Emperor. Historic documents and archaeological estimates predict that around 3 million Chinese died during the construction of the entire wall. New sections of the wall have recently been uncovered.