Pope Pius XII

While Arturo Mari may have started his professional photography career in the Vatican taking pictures of Pope Pius XII when he was just 16 years old, Mari’s work commanded the world’s attention when he accompanied history’s most travel-minded pope, St. John Paul II, on more than 100 pastoral visits outside Italy.

For more than 70 years, the popes and Catholic leaders around the globe have echoed the judgment that the nuclear bomb as “the most terrible weapon that the human mind has ever conceived.”