Continuing the series exploring the use of different building materials.
On the Rocks. Stone has been used in Britain for both cottages and castles. Durable and imposing, granite tower houses in the Scottish
Highlands, such as Drum
Castle, are still standing after 700 years. With Tom Baker. Producer Dick Foster
BOOKLET: An illustrated booklet is available by sending a cheque for £2.95 made payable to BBC Education, to: [address removed]