View of industrial buildings along Warspite Road in former Woolwich Dockyard, Woolwich, SE London, UK. This building of 1882-83 was once part of the General Post Office submarine cable depot. It contained four circular 11m-diameter cast-iron tanks on 92cm-thick concrete foundations where submarine telegraph cables were stored under water. It is now used as a car parts store.
<a href="//commons.wikimedia.org/wiki/User:Kleon3" title="User:Kleon3">Kleon3</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>