The Cathedral Basilica of St. Louis is much more than just the seat of the city’s archdiocese. It’s the home of the world’s largest collection of mosaic tiles — 41.5 million tiles, to be exact, in more than 7,000 colors that cover a total area of 83,000 square feet. From the second you step inside, you’ll be dazzled by the masterful work created by 20 artists over the course of 75 years. Read more >