This was taken in the on the roof of the South Tower.
Taken at Stokesay Castle in Shropshire

Stokesay Castle is quite simply the finest and best preserved fortified medieval manor house in England. Set in peaceful countryside near the Welsh border, the castle, timber-framed gatehouse and parish church form an unforgettably picturesque group.

http://www.english-heritage.org.uk/daysout/properties/stokesay-castle/