St Paul’s Cathedral – The Great Dome That Rose From the Great Fire of London
- Belinda Hath
- 1 day ago
- 8 min read
What Is St Paul’s Cathedral?
St Paul’s Cathedral is one of London's most recognisable landmarks, with its enormous dome dominating the City skyline for more than 300 years.
But the cathedral you see today isn't the first St Paul's to stand here. There has been a church dedicated to St Paul the Apostle on or around this site since AD 604, and several different cathedrals have been built, damaged or destroyed over the centuries.
The great turning point came in 1666, when the Great Fire of London swept through the medieval City and destroyed the old cathedral. Out of the ashes came the magnificent St Paul's we know today—the masterpiece of architect Sir Christopher Wren.
Who Was St Paul?
St Paul wasn't British and he never came to London. He was one of the most important figures in the early spread of Christianity. Originally known as Saul, he actually persecuted early Christians. According to the Bible, while travelling to Damascus he experienced a dramatic religious conversion and became a follower of Jesus. Paul then travelled extensively around the Roman world spreading Christianity and writing letters to early Christian communities. Many of those letters became books of the New Testament. According to Christian tradition, Paul was eventually executed in Rome.
So why name a London cathedral after him? Medieval churches were commonly dedicated to important Christian saints. London got St Paul, and the name has survived for more than 1,400 years.
The Great Fire Destroys Old St Paul’s
Before Wren's cathedral, London had an enormous medieval cathedral known today as Old St Paul's.
By the 1600s it was already in poor condition. Then came the Great Fire of London in September 1666. The fire began in a bakery on Pudding Lane and burned through the City for several days. People had actually stored books and other valuables inside St Paul's because they believed its thick stone walls would protect them. Unfortunately, the cathedral had a timber roof, and it was surrounded by wooden scaffolding for restoration work. The building caught fire. The roof collapsed, stone cracked in the intense heat and Old St Paul's was left a ruin. London now needed a new cathedral.
And Christopher Wren got one of the greatest architectural opportunities in British history.
Christopher Wren Builds a New London
Sir Christopher Wren wasn't simply the architect of St Paul's. After the Great Fire he helped rebuild dozens of churches across the City of London. His greatest project, however, was the new cathedral. Construction took around 35 years, and remarkably Wren lived long enough to see it essentially completed.
The design was unlike the medieval cathedral it replaced. Wren looked towards the classical architecture of ancient Rome and Renaissance Europe, creating the great columns, symmetry and monumental dome we see today. That dome rises approximately 365 feet—111 metres above London. For more than 250 years, St Paul's was the tallest building in London.
Why Does It Look So Roman?
If you've been following London's royal buildings, you'll recognise the idea. Wren used classical architecture—columns, pediments, symmetry and a huge dome—to communicate order, civilisation and power. The dome was particularly influenced by great European churches, including St Peter's Basilica in Rome. This was the London of Charles II, when Britain was looking back to Greece and Rome for architectural inspiration. The same classical language appears all over London today. And St Paul's became its masterpiece.
There Are Actually Three Domes
The enormous dome you see from outside and the beautiful dome you see from inside are not actually the same dome. Wren effectively created a three-part structure.
There's an inner dome that looks beautiful from the cathedral floor, a stronger brick cone above it that supports the heavy lantern at the top, and an outer dome that gives St Paul's its famous London silhouette. In other words, Wren cheated—brilliantly.
He wanted the dome to look perfectly proportioned both inside and outside, so he designed different structures to achieve each effect.
The Whispering Gallery
Climb into the dome and you'll reach the famous Whispering Gallery, running around the inside of the dome high above the cathedral floor.
Its curved walls create an unusual acoustic effect: a quiet voice against the wall can sometimes be heard much farther around the gallery. But don't stop there. Continue upwards and you can eventually reach the exterior galleries around the dome. It's a lot of stairs. The reward is one of the best views in London.
Nelson and Wellington Are Buried Here
St Paul's isn't just a cathedral.
It's also a national memorial to some of Britain's most famous figures. Two names in particular should now be very familiar: Admiral Horatio Nelson, who defeated the French and Spanish fleets at Trafalgar in 1805. And Arthur Wellesley, Duke of Wellington, who defeated Napoleon at Waterloo in 1815. Both were given enormous state funerals and buried in the crypt beneath St Paul's.
So London gives you a wonderful historical triangle:
Nelson → Trafalgar Square → buried at St Paul's
Wellington → Wellington Arch → buried at St Paul's
Napoleon didn't make it into the cathedral.
St Paul’s Survives the Blitz
One of the most powerful chapters in the cathedral's history came during World War II.
German bombing devastated huge areas of the City of London during the Blitz, and St Paul's was struck by bombs.
Teams of volunteer St Paul's Watch members remained at the cathedral during air raids, dealing with incendiary bombs and fires before they could destroy the building.
On the night of 29 December 1940, enormous fires burned across the City around St Paul's. The next morning, photographs of the cathedral's dome apparently rising above smoke and destruction became an extraordinary symbol of British survival. St Paul's had survived. Again.
Charles and Diana's Wedding
In 1981, St Paul's hosted one of the most famous royal weddings in modern history.
Prince Charles married Lady Diana Spencer here rather than at Westminster Abbey.
Why St Paul's?
One practical reason was size. St Paul's could accommodate a much larger congregation for the enormous state occasion. Diana arrived in a spectacular wedding dress with a 25-foot train, and an estimated global television audience of hundreds of millions watched the ceremony. The marriage didn't have a happy ending. But the images of Diana climbing the steps of St Paul's became some of the most famous royal photographs of the twentieth century.
Why Is St Paul’s So Important to London?
Westminster Abbey is primarily associated with coronations and royal history. St Paul's has a slightly different character. It has often become the setting for major moments of national celebration, mourning and remembrance.
Nelson and Wellington had their funerals here.
Queen Victoria celebrated her Diamond Jubilee outside it.
Winston Churchill's funeral was held here.
Charles and Diana married here.
Queen Elizabeth II celebrated her Golden and Diamond Jubilees with services here.
It is one of those buildings Britain turns to when it wants to mark a really big national moment.
Three Things to See
The Dome & Whispering Gallery
Look straight upwards when you enter. Then, if your legs are willing, climb the dome. The Whispering Gallery gives you an extraordinary view down into the cathedral, while continuing higher eventually brings you outside for panoramic views across London.
It's one of those experiences where you definitely earn the photograph.
The Crypt
Head downstairs and you'll find the tombs of some extraordinary British figures. The two big names for your London history tour are Nelson and Wellington. You'll also find Christopher Wren himself. His memorial carries a wonderful Latin inscription whose meaning is essentially: “Reader, if you seek his monument, look around you.” He didn't need an enormous tomb. The entire cathedral is his monument.
The American Memorial Chapel
Behind the High Altar is the American Memorial Chapel, dedicated to the approximately 28,000 Americans based in Britain who died while travelling to or stationed in the UK during World War II. A roll of honour contains their names. It's a lovely and sometimes unexpected connection between St Paul's and the United States.
Did You Know? – St Paul’s Almost Got a Giant Dome-Shaped Shopping Mall Next Door
Perhaps not literally—but here's the important story. For centuries, St Paul's dominated London's skyline. As modern skyscrapers began appearing, London introduced protections for several important views of the cathedral. These protected sightlines help explain why development in parts of London is restricted in height or shape. One of the most famous views is from King Henry's Mound in Richmond Park, roughly ten miles away, where you can still look through a carefully protected corridor and see the dome of St Paul's. So even today, Christopher Wren's cathedral is influencing where and how London can build skyscrapers.
Historical Highlights
AD 604 – Traditionally the foundation of the first St Paul's church in London.
1666 – The Great Fire destroys Old St Paul's.
1675 – Work begins on Wren's new cathedral.
1710 – The cathedral is officially completed.
1806 – Nelson is buried at St Paul's.
1852 – Wellington is buried here.
1940 – St Paul's survives devastating bombing during the Blitz.
1965 – Winston Churchill's funeral is held here.
1981 – Charles and Diana marry at St Paul's.
2022 – A national service celebrates Elizabeth II's Platinum Jubilee.
Imagine This...
It's the night of 29 December 1940 and the City of London is burning. German bombers have dropped thousands of incendiaries, buildings around St Paul's are ablaze and firefighters and volunteer cathedral watchers are desperately trying to prevent the flames reaching Wren's masterpiece. Through the smoke, the great dome remains visible above the burning City. The next morning, images of St Paul's apparently standing untouched amid the devastation travel around the world. The cathedral that rose from the ashes of the Great Fire of 1666 has survived another attempt by fire to destroy it. Few buildings capture London's ability to survive, rebuild and carry on quite like St Paul's.
Guide's Insider Tip
When you approach St Paul's, don't rush straight inside. Walk onto Millennium Bridge first and turn around. You'll get one of the classic London views, with Wren's great dome perfectly framed ahead of you.
Inside, head down into the crypt to find Nelson, Wellington and Christopher Wren. If you've already visited Trafalgar Square and Wellington Arch, this is where those stories suddenly reconnect.
Then look for the American Memorial Chapel behind the High Altar. It's an especially meaningful stop for American visitors and one that many people completely miss. And if you're feeling energetic, climb the dome. Just remember that reaching the top involves hundreds of steps and no convenient elevator to rescue you. Christopher Wren apparently believed the best views of London should be earned.
What Happened Next?
St Paul's was completed more than 300 years ago, but unlike many historic London buildings it has never become simply a museum. It remains a working Anglican cathedral. Services are still held here every day, while the cathedral continues to host major national occasions. And that is perhaps the best way to understand St Paul's.
William the Conqueror's Tower of London represents royal power.
Westminster Abbey represents coronation and monarchy.
The Palace of Westminster represents Parliament.
But St Paul's represents something slightly different: the City of London itself—destroyed, rebuilt, bombed, restored and still standing.
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