Cologne Cathedral, or Kölner Dom, rose from the smouldering embers of World War II to become Germany’s greatest Gothic cathedral and one of Europe’s most visited landmarks, drawing around 6 million visitors a year.
It’s directly opposite Cologne’s main railway station, so it’s easy to see even if you’re only passing through the city. Drop your bag in one of the station’s lockers and you can explore the cathedral and Cologne’s old town in a few hours before your next train.
Here are my favourite Cologne Cathedral facts, from the bones of the Magi to the Madonna of Milan.
1. Cologne Cathedral took more than 600 years to build
Work began on Cologne Cathedral in 1248, one of the most ambitious building projects of the Middle Ages. The choir, the oldest part of the church, was completed in 1322.
Then came the Reformation. Catholic pilgrims stopped visiting and the coffers ran dry, so building work stalled for centuries.
The cathedral wasn’t finished until 1880, when its twin towers were finally added, following the original medieval plans. That’s why it’s classed as Gothic rather than Neo-Gothic.
2. It survived the bombing raids of World War II
Cologne was pummelled during the Second World War. Ninety five per cent of the city was destroyed and its core bombed out.
Cologne Cathedral survived, though not unscathed. Fifteen bombs hit the building, yet it didn’t fall. Its stained glass and artistic treasures had already been moved to safety before the raids began
3. Cologne Cathedral is a UNESCO World Heritage Site
In recognition of its outstanding Gothic architecture and as a testament to the enduring strength of European Christianity, Cologne Cathedral was added to UNESCO’s World Heritage list in 1996.
4. Kölner Dom has its own cathedral cops
As you enter the cathedral, you will notice some men dressed in vibrant red robes. These are the Domschweizer, the equivalent of the Swiss Guard at the Vatican.
As well as acting as wardrobe police and shooing tourists out when services are about to begin, they can give advice and directions.
5. Cologne Cathedral is home to the Gero-Crucifix
To the left of the choir is the Chapel of the Cross, which houses the oldest surviving monumental crucifix north of the Alps.
Carved in the 970s, the Gero-Crucifix is an unusual rendering of Jesus on the cross. He is not depicted as triumphant or suffering. Instead, he is shown after his death, eyes closed. It’s the perfect marriage of sublime art and powerful theology.
6. It is the final resting place of the Three Wise Men
The mortal remains of the Magi drew pilgrims to Cologne from near and far, attracting funds to build the cathedral. Relics were a big deal in the Middle Ages.
In the 12th century, Frederick Barbarossa brought back the bones of the Three Kings from the conquered City of Milan and gave them to the Archbishop of Cologne, Rainald von Dassel. They are housed in the Shrine of the Three Magi, a gilt-encased reliquary studded with jewels and enamel. Designed by Nicholas of Verdun (1130 – 1205), this is thought to be the largest and most lavish reliquary in the Western world.
7. You can see the exquisite Madonna of Milan
The Shrine of the Magi is not the only show in town. The Madonna of Milan has also been attracting pilgrims for centuries.
Carved in the cathedral workshop in the 1280s, this painted wooden sculpture is said to have miraculous powers.
8. There are wonderful stained glass windows
Cologne Cathedral’s stained glass spans several centuries, and each section tells you something about when it was made.
At the east end, in and above the chapels, the glass is medieval. Along the nave it’s later: the windows on the left, showing the coats of arms of the cathedral’s donors, are early Renaissance, while the glass on the right is 19th century, a gift from Ludwig I, grandfather of the more famous “Mad” King Ludwig who built Schloss Neuschwanstein, one of Europe’s most famous palaces.
Look out too for the Gerhard Richter window in the south transept, installed in 2007. It’s made up of more than 11,000 individual glass squares in a rippling checkerboard of colour, and it’s one of the only modern additions to the building.
9. You can climb the tower of Cologne Cathedral for city views
If you’ve got the legs for it, climb 533 steps to the observation deck at the top of the South Tower for views over the Rhine and the old town. A small fee applies, and there’s information on opening hours and ticket prices here.
The Cathedral Treasury’s ecclesiastical treasures are also worth a look for a separate fee, and a combined ticket with the tower will save you money if you want to see both.
10. Cologne Cathedral is immense
Let’s finish with key Cologne Cathedral facts and figures.
With a floor space just shy of 8,000 square meters, Kölner Dom is one of the largest cathedrals in the world. Its limestone high altar is thought to be the largest in the world. The South Tower houses the largest swinging bell in the world, Saint Peter’s Bell.
If that’s not enough, this is the tallest twin-spired church in the world and is the second-tallest cathedral in Europe (it’s trumped by the cathedral in Lincoln, England).
Visiting Cologne Cathedral: Practical Information
The address is Domkloster 4, 50667 Köln, directly opposite Cologne’s main train station. Check current opening times here.
In 2026, general tourist entry costs €12 (worshippers and children under 14 go free). Tickets are are available online or from the Central Ticket Office in the Curia Building (“Kurienhaus”), Roncalliplatz 2, 50667 Cologne.
The tower climb and treasury each cost an additional €8.
The cathedral offers 45 minute guided tours in English. Buy tickets at the DOMFORUM opposite the cathedral.
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About Bridget
Bridget Coleman has been a passionate traveller for more than 30 years. She has visited 70+ countries, most as a solo traveller.
Articles on this site reflect her first-hand experiences.
To get in touch, email her at hello@theflashpacker.net or follow her on social media.