Hundreds attended the annual Walk of Witness service in Cathedral Square on Good Friday.
Starting at the Stanley Recreation Ground by Broadway, Christians from churches all over the city walked through the town centre following a wooden cross carried by three people.
Approximately 700 people then took part in the service which began at 10.30am.
The cross was placed upright on the steps of the guildhall and the service, which lasted half an hour, was led from between the arches in front of the building.
Good Friday hymns were sung and prayers said, and the crowd was addressed by Rev David Whitlock, the lead minister at Bretton Baptist Church.
Rev Whitlock chose to read part of the story of Good Friday from St Mark’s account in the Bible.
The passage relates to how Pontius Pilate, the Roman governor in Jerusalem in the time of Jesus, offered to release him rather than have him killed after he had been arrested by the religious authorities in Jerusalem.
But a crowd demanded that he should instead release Barabbas, a bandit and murderer, and kill Jesus on a cross.
Good Friday is the day on which Christians say Jesus was killed by being nailed to the cross, with Easter Sunday the day when God raised him back to life.
A spokesperson for the organisers, Churches Together in Central Peterborough, said: “The inspired story-telling of the preacher, Rev David Whitlock, provided a new slant on the events of Good Friday, helping us to understand the horror of death on a Roman cross which Jesus Christ suffered to enable reconciliation between God and humankind.”
A Walk of Witness service was also held in Stamford on the same day.