Sycamore Gap, England

The aurora borealis has illuminated the sky with colour here at Sycamore Gap, in Northumberland, England’s most northerly county. This sycamore tree has been keeping a lonely watch for hundreds of years at the bottom of a steep dip in Hadrian’s Wall, the 117.5-kilometre-long fortification built to mark the north-west frontier of the Roman Empire.
© Guy Edwardes/NPL/Minden Pictures