- Catholicism, Catholics, and Catholic Church Organization
- Catholic Priests: Clothes, Celibacy, Ordination
- History of the Catholic Church
- The Pope: His Duties, Clothes, History, Peter and How He Is Selected
- Catholic Beliefs
- Catholic Beliefs about Mary
- Apparitions and Miracles Associated with the Virgin Mary
- Big Three Apparitions of Mary: Fatima, Lourdes, Guadalupe
- Purgatory and Catholic Beliefs about Life After Death
- Important and Unusual Popes
- Strange Things in Christianity: Stigmata, Padre Pio, Incorruptables and the Flying Monk
- Sacraments of the Catholic Church
- Catholic Rituals and Prayer Aids: Mass, Liturgy, Holy Water and Oil and Rosaries
- Catholic Holidays and Festivals
- Catholic Marriage, Weddings, Divorce and Annulment
- Vatican City, St. Peter's Basilica and Their Famous Artworks
- Vatican Government and Infrastructure
- Protestantism Versus Catholicism
