The towering spires of the Cathedral Basilica of the Immaculate Conception add a bit of history to Denver's skyline. Completed in the year 1911 CE, the cathedral still brings together faithful for Sunday service accommodating a total of 800 people. John Paul II held mass here on the 13th and 14th of August, 1993 to celebrate World Youth Day and a statue of His Holiness on the cathedral's ground...