The Basilica of Saint Louis, King of France, holds a significant place in American history as the first cathedral established west of the Mississippi River. Known as the Old Cathedral, its roots date back to 1764, reflecting the rich cultural heritage of St. Louis, Missouri. The current structure, completed in 1834, stands as a testament to the enduring legacy of faith and community in the region. It remains a vibrant part of St. Louis, not only as a place of worship but also as a historical landmark attracting visitors from around the world.