English heatwave reveals "X-ray" of Greys Court

Greys Court, near Henley-on-Thames, is an English mansion built in the 1550s. Now a major heatwave has revealed that the mansion was once much larger through "parch," areas of dead grass, outlining structures from the original building.

Archaeologists are scrambling to map the building before the weather changes and the outlines are lost. "The marks tell us that there were walls, probably brick, extending across the existing forecourt which divided this space in the 16th Century into an outer or 'base' court and a more formal inner court," said archaeologist Gary Marshall.