Fred Dibnah reveals the genius, the vision and the sheer bloody graft that went into creating some of Britain's greatest national monuments. All six episodes look at Britain's architectural heritage. In 'Mighty Cathedrals' Fred examines the innovations in building techniques which allowed the Normans to build some of the nation's most remarkable cathedrals. 'The Art of Castle Building' has Fred take a look at the castles of the North Wales coastline. 'The Age of the Carpenter' sees Fred learn al...