884 Great Wall of China
China - 2005; The Great Wall of China stands today with its immense length and strength, revered as one of the greatest feats of architecture carried out in the ancient world. The history of the construction of the Great Wall of China can be dated back to the Western Zhou Dynasty (11th century BC - 771 BC). Built originally to protect the northern borders of the Chinese Empire against intrusions by various nomadic groups, the Great Wall is a series of stone and earthen fortifications that stretches from Liaoning in the east to Gansu in the west. The wall was constructed intermittently until the 16th century when it was completed during the Ming Dynasty. Using advanced technologies, recent surveys have concluded the length of the wall measures 5,500 miles. This image framed from the inside of a fortress shows the impressive stone structure against the backdrop of the beautiful Chinese countryside.