Dudley Castle
Dudley Castle is a ruined castle in the town of Dudley, West Midlands, England. Dudley Zoo is located in its grounds. The location, Castle Hill, is an outcrop of Wenlock Group limestone that was extensively quarried during the Industrial Revolution, and which now along with Wren's Nest Hill is a Scheduled Ancient Monument as the best surviving remains of the limestone industry in Dudley. It is also a Grade I listed building. The Dudley Tunnel runs beneath Castle Hill, but not the castle itself. (Wikipedia)
