The relics of St. Pio of Pietrelcina visited St. Joseph&amp;rsquo;s Seminary in Dunwoodie, above, and St. Patrick&amp;rsquo;s Cathedral last September during their tour of the United States. The Basilica of St. Patrick&amp;rsquo;s Old Cathedral in lower Manhattan will host the saint&amp;rsquo;s relics Sunday to Saturday, Sept. 16-22.