My boyfriend has lived in Newbury/Reading for over 20 years and did'nt know this was here!!
Just a short ride up the hill from the town centre you get to Donnington Castle.
The striking twin-towered 14th- century gatehouse of this castle, later the focus of a Civil War siege and battle, survives amid impressive earthworks.
The view from up here is great too!
1 mile N of Newbury off B4494 (OS Map 174; ref SU 461)