Through the letting income, the Landmark Trust raises funds to restore  builds of historical and architectural interest.  Once restored, their buildings are available for holidays, all year around.

There are 184 Landmarks throughout Britain and the Channel Islands, including 23 on Lundy Island, four in Italy and four in the USA. They include forts, manor houses, mills, cottages, castles, gatehouses, follies and towers.  

http://www.landmarktrust.org.uk/