St. Louis has a free cathedral covered in 41 million pieces of colored glass

St. Louis’s best-kept secret isn’t a secret

You’ve probably walked past buildings your whole life without knowing what’s inside.

The Cathedral Basilica of Saint Louis is one of those places, except once you step through the doors, you stop walking and just look up.

Forty-one and a half million pieces of glass cover the walls, the arches, the domes. The color never stops.

And the whole thing costs you nothing to see.

The green dome you can spot from miles away

The cathedral sits at 4431 Lindell Boulevard in St. Louis’s Central West End, and its green-tiled dome rises more than 200 feet. You can pick it out from a distance before you ever reach the neighborhood.

Up close, the building blends Byzantine curves with Romanesque solidity, a combination that looked unusual when the architect George Barnett drew it up in the early 1900s.

It still looks unlike most anything else standing in the American Midwest.

From one archbishop’s dream to another’s life work

The push for a new cathedral started in the late 1800s under Archbishop Peter Richard Kenrick, but it took two more archbishops to get it built.

Archbishop John J. Kain bought the property and left his entire personal estate to the building fund when he died. Archbishop John J. Glennon drove construction forward.

Ground broke on May 1, 1907. The first Mass came on Oct. 18, 1914, and the church reached consecration on June 29, 1926.

41.5 million pieces of glass in more than 7,000 colors

The mosaics are what people come for, and the scale of them takes a moment to process. Glass tesserae cover about 83,000 square feet, making this one of the largest collections in the Western Hemisphere.

The work started in 1912 and the final piece went in during 1988, a span of 76 years. More than a dozen artists contributed over those decades.

Unlike marble, Byzantine-style glass catches the light and shifts as you move through the space.

Gold ceilings greet you in the entry hall

The narthex is the first room you walk through, and it sets the tone fast.

Look up and the barrel-vaulted ceiling glows with gold mosaics showing scenes from the life of King Louis IX of France, the city’s patron saint.

Workers completed this section in 1930, and the figures still hold their warmth and color nearly a century later. The narthex feels complete on its own, but it’s only the opening act for what waits deeper inside.

The main dome climbs 143 feet above your head

Polish artist Jan Henryk de Rosen designed the main dome, and workers finished it in 1965.

The interior rises to about 143 feet, and red tesserae pull your eye upward toward biblical scenes from both the Old and New Testament. Angels and Doctors of the Church fill the pendentives below the dome’s base.

Standing under it, you get the full weight of what 76 years of work actually looks like when it comes together in one space.

Four chapels, each built for a different purpose

Louis Comfort Tiffany himself designed the Blessed Virgin’s Chapel, with mosaics tracing the life of Mary, and the All Saints Chapel, which holds a striking statue of Saint Joseph.

The All Souls Chapel uses black marble on the lower half to represent death and white marble above it to represent eternal life. The Blessed Sacrament Chapel, with its bronze doors, was one of the first areas finished.

Pope John Paul II prayed in the Blessed Virgin’s Chapel during his 1999 visit.

The artists who spent their lives on these walls

Tiffany Studios of New York handled the side chapels and sanctuary walls.

August Oetken designed the mosaics in the main cathedral areas and worked inside the building for more than 40 years. Father-and-son team Paul and Arno Heuduck gave nearly their entire working lives to the project.

Hildreth Meiere, an Art Deco artist from New York, contributed pieces in the 1940s and 1950s. The Ravenna Mosaic Company of St. Louis and Emil Frei, Inc. also played key roles in the finished work.

Pope John Paul II left more than footprints here

On April 4, 1997, Pope John Paul II designated the cathedral a basilica, a formal honor recognized by symbols still on display flanking the High Altar today.

He visited in person in January 1999, and parishioners handmade a needlepoint kneeler for him to use during his time there.

That kneeler and the papal throne now sit in the Mosaic Museum on the lower level, along with a 1915 Kilgen organ console and exhibits showing how each mosaic piece was cut and set.

A Bible handwritten for the first time in centuries

In 2017, the cathedral acquired a Heritage Edition of The Saint John’s Bible, the first completely handwritten and illuminated Bible commissioned by a Benedictine abbey since the printing press changed everything.

Calligrapher Donald Jackson led a team working in Wales and Minnesota to produce the seven-volume set. It runs more than 1,100 pages and holds over 160 hand-painted illuminations.

The volumes are on display inside the cathedral, and you can look through them during your visit.

A 14-foot steel angel that plays music in the wind

Outside the cathedral stands the Angel of Harmony, a 14-foot stainless steel sculpture created by Polish sculptor Wiktor Szostalo in 1999.

It shows a winged angel with African-American features standing behind three children, representing Hispanic, Asian, and European heritage, playing instruments together. The wings hold more than 100 wind chimes.

Quotes from the New Testament, Pope John Paul II, and Dr. Martin Luther King Jr. run along the base. A vandal damaged the piece in September 2024, and the original sculptor took on its restoration.

Self-guided, free and easier to get to than you’d think

No reservation, no entry fee, no tour guide required.

The cathedral stays open daily from 7 a.m. to 5 p.m., and guided tours follow most Sunday noon Masses if you’d rather have someone walk you through it.

The Central West End MetroLink station sits less than a mile away.

If you want more to fill the day, Forest Park is nearby and holds the Saint Louis Art Museum, the Missouri History Museum, and the Saint Louis Zoo, all within walking distance of each other.

Visit the Cathedral Basilica of Saint Louis in Missouri

You can walk in any day of the week without a ticket or a plan.

The cathedral sits at 4431 Lindell Blvd. in St. Louis’s Central West End and stays open from 7 a.m. to 5 p.m. The Mosaic Museum on the lower level runs 10 a.m. to 4 p.m. Monday through Saturday and noon to 4 p.m. on Sundays, with a suggested $2 donation.

Guided tours follow most Sunday noon Masses. If you’re visiting on a weekend, call ahead since weddings and events can limit access.

This article was created with AI assistance and human editing.

Read more from this brand:

• Drive past Independence, Missouri and this 300-foot steel nautilus will stop you cold
• America’s Best BBQ Might Be in Missouri – And It’s Dirt Cheap
• A suburb west of St. Louis has a concrete church that looks like a space station