This is the famous giant at Cerne Abbas, Dorset, made by exposing the chalk hill under the grass. Typically this method has been used to create the many White Horses scattered over the chalk downlands of southern England.

Opinions differ as to whether it is 1500 years old and a depiction of the Roman God Hercules, or created by an angry farmer about 350 years ago as a caricature of Oliver Cromwell. (No local documents before 1694 refer to the figure.)

Here's a better photo from the tourist office if you can't make out all the detail.