In 2006 , there were 183 landmarks throughout Britain and the Channel Islands, including 23 on Lundy Island, four in Italy and four in the USA.
In 2005 , there were 178 buildings available.
Landmarks include forts, manor houses, mills, cottages, castles, gatehouses, follies and towers.
As an example of the variety of structures it owns and their geographical range the following were opened to the public to celebrate its 40th anniversary in 2005.
- Warden Abbey , Old Warden , Bedfordshire
- Lundy Island , Bristol Channel
- The Egyptian House, Chapel Street, Penzance , Cornwall
- Crownhill Fort , Plymouth , Devon
- The Priest's House , Holcombe Rogus , Devon
- South Street, Great Torrington , Devon
- Wortham Manor , Lifton , Devon
- Woodsford Castle , near Dorchester, Dorset
- Abbey Gatehouse , Tewkesbury , Gloucestershire
- Old Campden House , Chipping Campden , Gloucestershire
- Shelwick Court , near Hereford , Herefordshire
- The Grange, Ramsgate , Kent
- Princelet Street, Spitalfields , London
- Methwold Old Vicarage, Methwold , Norfolk
- Appleton Water Tower , Sandringham , Norfolk
- Brinkburn Mill , near Rothbury , Northumberland
- Morpeth Castle , Morpeth , Northumberland
- Langley Gatehouse , near Acton Burnell , Shropshire
- The White House, Aston Munslow , Shropshire
- The Old Hall , Croscombe , Somerset
- Woodspring Priory , near Weston-super-Mare , Somerset
- Gurney Manor , Cannington , Somerset
- Ingestre Pavilion , Tixall , Staffordshire
- New Inn, Peasenhall , Suffolk
- Martello Tower , Aldeburgh , Suffolk
- Laughton Place , near Lewes , East Sussex
- Wilmington Priory , near Eastbourne , East Sussex
- Sackville House , East Grinstead , West Sussex
- The Grammar School , Kirby Hill , North Yorkshire
- Culloden Tower , Richmond , North Yorkshire
- Beamsley Hospital , near Skipton , North Yorkshire
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