From the soaring dome of St. Peter’s Basilica to the unfinished spires of the Sagrada Familia, the world’s most famous churches are far more than places of worship, they are masterpieces of architecture, engineering and art that have drawn travellers and pilgrims for centuries. Here are ten of the most famous churches and cathedrals on Earth, and what makes each one remarkable.
1. St. Peter’s Basilica, Vatican City
The largest church in the world by interior space, St. Peter’s is the spiritual heart of the Roman Catholic Church. Designed across the Renaissance by Bramante, Michelangelo and Bernini, its vast dome still dominates the Rome skyline and draws millions of pilgrims and visitors each year.
2. Notre-Dame de Paris, France
Begun in 1163, this French Gothic cathedral on the Ile de la Cite is famous for its flying buttresses, gargoyles and luminous rose windows. After the devastating fire of April 2019, it underwent a major restoration and reopened to the public in December 2024.
3. Sagrada Familia, Barcelona, Spain
Antoni Gaudi’s extraordinary basilica has been under construction since 1882. A UNESCO World Heritage Site, its completion is expected around 2026, when the central Tower of Jesus Christ will make it the tallest church in the world.
4. Cologne Cathedral, Germany
This twin-spired Gothic masterpiece took more than 600 years to finish, completed only in 1880. A UNESCO World Heritage Site, it houses the Shrine of the Three Kings and was for a time the tallest building in the world.
5. St. Basil’s Cathedral, Moscow, Russia
With its swirl of brightly coloured onion domes on Red Square, St. Basil’s is one of the most recognisable buildings on Earth. It was commissioned by Ivan the Terrible and completed in 1561, and today serves as a museum.
6. Las Lajas Sanctuary, Colombia
Dramatically built into the gorge of the Guaitara River, this neo-Gothic basilica appears to grow out of the canyon walls, connected to the opposite cliff by a soaring bridge. It is one of the most striking pilgrimage sites in South America.
7. Milan Cathedral (Duomo di Milano), Italy
One of the largest churches in the world, the Duomo took nearly six centuries to complete. Its roof terraces, thousands of statues and forest of marble spires make it a defining symbol of Italian Gothic architecture.
8. St. Paul’s Cathedral, London, England
Sir Christopher Wren’s Baroque masterpiece, completed in 1711, is crowned by one of the largest cathedral domes in the world. It famously survived the bombing of the Blitz and remains a symbol of London’s resilience.
9. Florence Cathedral (Santa Maria del Fiore), Italy
Florence’s great cathedral is renowned for Brunelleschi’s dome, still the largest brick dome ever constructed. A triumph of Renaissance engineering, it remains the defining landmark of the city’s skyline.
10. Metropolitan Cathedral of Brasilia, Brazil
Designed by modernist architect Oscar Niemeyer, this striking cathedral is formed from 16 sweeping curved columns that rise to a crown of glass. Its luminous interior makes it one of the most distinctive churches built in the modern era.
If you love remarkable religious architecture, explore our related lists: the most amazing medieval cathedrals in Europe, the most famous domes in the world, and the most famous Jesus statues in the world.
You may also enjoy our looks at the most famous statues in the world, the most famous bridges in the world, and the oldest buildings still standing.
The most beautiful and unique church I have seen to date has to been the cathedral in Barcelona. It was really beautiful inside and out but I was disappointed by the Notre Dame in Paris. I thought it was lovely but slightly overrated……….