One of the ways that significant parts of our heritage can be protected is through the listing process of Historic England (further details here).
Duck houses form part of the ephemeral heritage of country house estates and can often be overlooked. The medieval style duck house at Hedingham Castle in Essex floats in one of the lakes created in 1720. It deliberately evokes the 12th century castle keep in the estate.
Such an unusual feature stands alongside scheduled duck decoys (e.g. Peterborough).
One of the joys of visiting Stonehenge and Avebury has been exploring the immediate vicinity of the stones. Now that the Stonehenge visitor centre has started to encourage visitors to see the structure in a wider setting, it is helpful to think about some of the ways of identifying walks and paths.
Wessex Archaeology produced Beyond Stonehenge subtitled A guide to Stonehenge and its prehistoric landscape (2nd ed. 1991). The sections are:
The first Stonehenge
The stones arrive
Fields and farms
The search for the past
Visitor information and guide map
The National Trust produced a folder, Walking around Avebury (1997). The booklet part has sections on: