In St. Louis, the World's Largest Collection of Mosaics

Cathedral Basilica of Saint Louis invites visitors of all faiths to its spectacular and inspiring interior space.

Groundbreaking for Cathedral Basilica of Saint Louis occurred in 1907, and construction of the massive building, designed by Thomas P. Barnett, was largely completed by 1914. But installation of the cathedral's extraordinary collection of mosaics, which covers some 83,000 square feet, was not finished until 1988. The cathedral's gray granite Romanesque exterior gives way to a Byzantine interior distinguished by yellow and white marbel banded wall courses and those mosaics, composed of some 41.5 million glass tesserae pieces lining the domes, chapel walls and most of the upper structure.

Nave of Cathedral Basilica of Saint Louis

The cathedral invites visitors of all faith traditions to view the mosaics, tour the building, and engage in quiet contemplation. The cathedral also offers a season of concerts featuring outstanding artists from around the world.

Side chapel at Cathedral Basilica of Saint Louis

Guided tours are available weekdays 10am-4pm; call 314.373.8241 for reservations. Self-guided tours do not require reservations, but it is advisable to call and ensure the church is available, and to wait for the completion of daily Mass: M-F 7am, 8am, 12:05pm; Sa 8am, 5pm; Su 8am, 10am, noon, 5pm.

There is a gift shop off the west side of the vestibule on the main level offering spiritual keepsakes and unique souvenirs.