Tomorrow, celebrations marking the 20th anniversary of the reopening of the Armenian Church Diocese of Artsakh will kick off at the monastery complex of Gandzasar, the seat of the Armenian Church in Artsakh. Presiding over the celebrations that will last till September 28 will be His Holiness Garegin II, Catholicos of all Armenians. On September 27,  an exhibit entitled "Church Treasures" will be opened at the Artsakh Historical-Geological Museum in Stepanakert. The following day a photo and book exhibit focusing on the activities of the church will open at the Culture and Youth Palace in Stepanakert. The celebrations will conclude with a concert of spiritual music.