Church of the Holy Spirit in Rome. The image was blessed for the first time by John Paul II in 1994. Mother M. Wendy was present for this blessing. St. Faustina prophesied about this blessing in her Diary #1044
" Suddenly, God's presence took hold of me, and at once I saw myself in Rome, in the Holy Father's chapel and at the same time I was in our chapel. And the celebration of the Holy Father and the entire Church was closely connected with our chapel and, in a very special way, with our Congregation. And I took part in the solemn celebration simultaneously here and in Rome, for the celebration was so closely connected with Rome that, even as I write, I cannot distinguish the two but I am writing it down as I saw it. I saw the Lord Jesus in our chapel, exposed in the monstrance on the high altar. The chapel was adorned as for a feast, and on that day anyone who wanted to come was allowed in.  The crowd was so enormous that the eye could not take it all in. Everyone was participating in the celebrations with great joy, and many of them obtained what they desired. The same celebration was held in Rome, in a beautiful church, and the Holy Father, with all the clergy, was celebrating this Feast, and then suddenly I saw Saint Peter, who stood between the altar and the Holy Father. I could not hear what Saint Peter said but I saw that the Holy Father understood his words.... "
The Holy Father John Paul II appointed the church of Santo Spirito in Sassia to be The Divine Mercy Spirituality Center (from 1 January 1994).