This is the Wilmington Man in England. He is 234 feet in height. No one knows his purpose. It seems we was made in about 400 AD but it could be much older. He can only be fully made out from the sky, something no one could do until the 1700s by balloon. What is his purpose? No one knows. In WW2 he was covered with bricks to prevent the Germans from using him as a directional symbol when they flew over.