Maritime widow's castle Severndroog restored
18 July 2014 Last updated at 08:07 BST
An 18th century gothic tower built by a maritime widow has been restored after it fell into disrepair for almost 30 years.
Severndroog Castle on Shooters Hill, south-east London, is reopening after a local campaign to save it and money from the Heritage Lottery Fund.
Heritage manager Dr Laura Allan and Dr Barry Gray, of Severndroog Castle Building Preservation Trust, describe how the castle was restored.