How did the great wall of china earn its spot on the "7 wonders of the world" list?

Built between the 5th century B.C. and the 16th century, the Great Wall of China is a stone-and-earth fortification created to protect the borders of the Chinese Empire from invading Mongols. The Great Wall is actually a succession of multiple walls spanning approximately 4,000 miles, making it the world's longest manmade structure.

I hope this helps. :p

i am a priest who cares deeply about the church. i have been called here to explain my views on indulgences and other proposed reforms. i would like to explain why my views are consistent with the bible and are correct.

answer; answer; marginal cost;