Members of public try to find another brick in the wallpublished at 11:45 British Summer Time 23 June 2016
Johnny Dee
BBC Radio Cambridgeshire
I've been in the grounds of Peterborough Cathedral, external, where archaeologists are today unearthing parts of a wall that was built in the grounds about 1,000 years ago.
A community dig is taking place until Sunday, and schoolchildren and tourists are being invited along to see what's been discovered.
The wall that's being searched for used to enclose the monastery on the site.