Cathedral Basilica of the Immaculate Conception
The Cathedral Basilica of the Immaculate Conception is Denver’s grand French Gothic cathedral, rising just a block from the Colorado State Capitol on East Colfax Avenue. With twin 210-foot spires, Carrara marble altars and 75 stained-glass windows from Munich, it is one of the most beautiful and moving places to visit in the city.
Cathedral Basilica of the Immaculate Conception in Denver, CO
Denver’s first Catholic church, St. Mary’s, stood at 15th and Stout streets, where Father Joseph Machebeuf celebrated Mass on Christmas Eve of 1860. Ground was broken for the present cathedral in 1902, the cornerstone was laid in 1906, and the twin spires were capped in 1911 after Father Hugh McMenamin revived the stalled fundraising. Designed by Detroit architect Leon Coquard and completed by Denver architects Aaron Gove and Thomas Walsh, the cruciform church measures 195 by 116 feet, with a vaulted ceiling 68 feet above the nave. Just before the 1912 dedication, lightning knocked the top 25 feet off the west spire, which was repaired in time.
Inside, look for altars, statues, the pulpit and bishop’s chair carved from Italian Carrara marble, and interior marble quarried in Marble, Colorado. The 75 windows were crafted by F.X. Zettler’s Royal Bavarian Art Institute in Munich, and the east spire holds 15 bells. The cathedral is also home to the Tomb of Julia Greeley, a place of prayer for many visitors. Pair your visit with the gold dome of the nearby Colorado State Capitol or the galleries of the Denver Art Museum, both an easy walk away.
Photo Gallery
Photo credits: Cathedral Basilica of the ImCo – Denver, CO by Laxjab2012 (CC BY-SA 4.0); Denver Cathedral, exterior, view of the Cathedral by Workman (CC BY-SA 4.0); Denver, Church of the Immaculate Conception by Martin Ely (CC BY 2.0); CIMDenver by Original uploader was Vertigo700 at en.wikipedia (CC BY-SA 3.0); Denver,Colorado,USA. – panoramio – Roman Eugeniusz by Roman Eugeniusz (CC BY-SA 3.0); Denver Cathedral, interior 3, view toward front by Workman (CC BY-SA 4.0); Denver Cathedral, interior 4, Main altar by Workman (CC BY-SA 4.0); Denver Cathedral, interior 7, view toward back of the church by Workman (CC BY-SA 4.0); Organ Pipes, The Cathedral Basilica of the Immaculate Conception, Denver by Sharon Mollerus (CC BY 2.0). Images via Wikimedia Commons.
News & Events
The Cathedral Basilica welcomes visitors daily and hosts concerts, organ music and special liturgies throughout the year, including Advent and Christmas celebrations. Guided tours of the architecture and history can be requested in advance for weekday mornings and early afternoons. Check denvercathedral.org for Mass times, events and parking details before you go.
Frequently Asked Questions
What is there to see at the Cathedral Basilica in Denver?
- Twin spires: Admire the 210-foot Gothic towers on Colfax Avenue.
- Stained glass: See 75 windows made in Munich, Germany.
- Marble altars: View Carrara marble altars and statues.
- Bells: Hear the east spire bells before Sunday Mass.
- Julia Greeley: Visit the Tomb of Julia Greeley inside.
What are the Cathedral Basilica's hours?
The church is open Monday through Friday 6:45 a.m. to 6:45 p.m., Saturday 6:45 a.m. to 6 p.m., and Sunday 8 a.m. to 8 p.m. Visitors are asked to keep quiet, avoid food and remove hats.
Does the Denver cathedral offer tours?
Yes. Guided tours led by staff can be scheduled in advance Monday through Friday between 8 and 11 a.m. or 1 and 3 p.m. Tours only take place when booked ahead.
When was the Cathedral Basilica built?
Ground was broken in 1902, the spires were capped in 1911, and the cathedral was dedicated in 1912. It was later named a minor basilica by Pope John Paul II in 1979.
What are the Mass times?
Weekday Masses are at 7 a.m., 12:10 p.m. and 5:30 p.m.; Saturday at 7 a.m. and 4:30 p.m.; and Sunday at 8:30 a.m., 10:30 a.m. (choral), 12:30 p.m. and 6:30 p.m. Confirm on the cathedral website.
The Cathedral Basilica is at 401 E. Colfax Ave., Denver, CO 80203. Call the parish office at 303-831-7010 or visit denvercathedral.org to plan your visit.








