Vast crowds gathered in Seoul's Gwanghwamun Square in South Korea as Pope Francis delivered a beatification mass for 124 Catholic martyrs.
Beatification is the last step before sainthood in the Roman Catholic Church.
In his homily before a crowd of hundreds of thousands, Francis said the martyrs' courage and charity and their rejection of the rigid social structures of their day should be an inspiration for people today.
The Pope posed and smiled for a selfie with a young Catholic in South Korea.
Pope Francis was greeted by cheers and the waving of handkerchiefs as he arrived at South Korea's Daejeon World Cup Stadium to hold a mass.