Oxfordshire balloonist spots Bronze Age sites

Drought and extreme heat in England have made it possible to see ancient sites normally hidden by vegetation. Balloonist Michael Wolf saw dark circles in a farmer's field and realized these were evidence of Bronze Age burial mounds.

The 52-year-old said: “In twelve years of ballooning, I have never seen anything as clear as this. It was like looking down on a map.

“I have flown over this field before, and never seen any marks. The hot weather must have created absolutely perfect conditions for seeing the marks.”