The Cathedral Basilica St Louis at Newstead and Lindell represents the the largest collection of mosaics in the world * CLICK 'READ MORE' TO SEE INTERIOR PICTURES * The mosaics collectively contain 41.5 million glass tesseraepieces in more than 7,000 colors - overing 83,000 square feet.
The building commenced in 1908- but the mosaics were not completed until 1988.