The remains of what is believed to be Aberdeen's last surviving World War II prisoner of war camp have been found during work on a landfill site.
German soldiers were kept on Tullos Hill from about 1945.
There are believed to have been at least two other camps in Aberdeen, in Hayton and Peterculter, but they have both been built over.
Aberdeen City Council's keeper of archaeology, Judith Stones, said the find was "fantastic".
She explained: "Now we're taking care to ensure that no damage is done during the current works, and it's very exciting that some new discoveries are being made in the process."
She will give a talk, Archaeology, Rubbish and New Discoveries on Tullos Hill, at Aberdeen Maritime Museum from 1230 BST to 1300 BST on Wednesday 23 September.