Mysterious Lake District barn joins national treasures on heritage list

Officials grant Grade II* protection to rare building that raises more questions than it answers'

It is an elite list with some of the most significant and beautiful buildings and structures in England, including Battersea power station, Middlesbrough's Transporter Bridge and the London Coliseum.

Now the Grade II* landmarks are being joined by a mysterious, limestone rubble barn" on a grassy knoll in the Lake District, which was most recently used as a shelter for sheep and cows.