Cathedral Basilica of Saint Louis
St. Louis, MO 63108
314-373-8240
The largest mosaic collection in the world is located in this beautiful historic church. The mosaic covers 83,000 square feet, contains 41.5 million pieces of glass tesserae, and was created by 20 different artists. A gift shop is also on site that carries books and postcards that provide detailed information on the history of the church.