If you stand in the valley near the village of Uffington in Oxfordshire, England, and look up at the high curve of chalk grassland above you, one thing dominates the view. Across the flank of the hill runs an enormous white, abstract stick figure horse cut from the chalk itself. It has a thin, sweeping body, stubby legs, a curiously long tail and a round eye set in a square head.
This is the Uffington White Horse, the oldest of the English hill figures. It’s a 3,000-year-old pictogram the size of a football field and visible from 20 miles away. On this July morning black specks dot the lower slopes as small groups of people trudge slowly upwards. They’re coming to clean the horse. […]