Stones From One of Henry VIII's Fortresses Spent More Than a Century Hidden in Plain Sight. New Research Suggests the Victorians Repurposed Them as Building Materials
Recently discovered archival records indicate that workers constructing an extension of the Constable's Gate at Dover Castle in the late 19th century reused fragments of the Tudor-era Sandown Castle
We haven't written up this one. Smithsonian has the full story — the link below goes straight to it.