The Cathedral Basilica of Saint Louis contains the largest collection of mosaics in the world and is one of St. Louis' most impressive architectural treasures. The cathedral of St. Louis was dedicated in 1926 on the 10th. anniversary of the establishment of St. Louis as a diocese. An imposing structure - solid, permanent, huge - the building's richly colored interior mosaics are a visual prayer. Built under the direction of Archbishop John Glennon - the last Irish-born Bishop of St. Louis - and completed under the leadership of Archbishop John May, every impressive inch of the Cathedral is used to tell the story of salvation and the history of the Catholic faith lived in St. Louis.

Miscellaneous sculptures adorn the grounds of the Cathedral Basilica. The sculptures can be found in the gardens between the Cathedral and the Parish house; a beautiful place to reflect and admire the talent of the sculptors.