Tournai Cathedral

Stand still for a moment and look up. Five dark stone towers rise above the rooftops, square and heavy, grouped tightly together like a family posing for a portrait. The stone is not the pale cream of Paris or the honey gold of English cathedrals. It is a deep blue-grey, almost the colour of wet slate. When rain comes off the river, the walls darken further. On a bright day they turn soft and silvery. This is the Cathedral of Our Lady of Tournai.

Tournai is one of the oldest cities in Belgium. It sits on the river Scheldt, close to the French border, and it was an important Roman town long before this church existed. In the fifth century it became a seat of the Franks, the people who later gave France its name. In 1653, workers here found the tomb of Childeric, a Frankish king and the father of Clovis. So when you stand in this square, you stand near the very beginnings of medieval Europe.

The cathedral you see grew in stages, and you can read those stages in the building itself. The nave and the great transept were raised in the twelfth century in the Romanesque style. Romanesque means round arches, thick walls, and a solid, grounded feeling, inspired by the buildings of ancient Rome. Then, in the thirteenth century, the builders replaced the old eastern end with a new Gothic choir. Gothic means pointed arches, tall windows, and a reach towards light. Two worlds meet under one roof.

Now look again at those five towers. They stand over the crossing and the transept, the arms of the cross-shaped plan. One central lantern tower is surrounded by four others. Very few churches anywhere carry a group like this. From a distance, especially from the hills outside town, the cluster looks almost like a small fortified city. Locals have long used the towers as a landmark, and they appear on countless postcards, paintings, and logos across the region.

Here is a detail many visitors miss. The two arms of the transept do not end in flat walls. Each one ends in a rounded apse, a semicircular bay, much like the curved end of a choir. This gives the building three rounded ends instead of one. Architects call this a trefoil, or three-lobed, plan. It is an idea associated with the Rhineland in Germany, and it shows how Tournai looked east as well as south for inspiration.

The stone itself has a story. It is Tournai limestone, quarried in the valley of the Scheldt around the city. When polished, it takes on a dark, glossy surface, and medieval traders sold it as a kind of marble. Here is the second surprise: carved baptismal fonts made of this stone travelled across the sea to England. Several still stand in English churches, including Winchester Cathedral. A piece of this riverbank ended up in fonts where English children were baptised.

Step inside, and the scale changes. The Romanesque nave is long and calm, with rows of round arches stacked in several levels. The light is soft and even. Your footsteps echo off the stone floor, and voices drop naturally to a murmur. Look at the capitals, the carved tops of the columns. Many carry leaves, knots, and creatures. The carvers worked in the same dark stone, so the decoration feels part of the wall rather than added to it.

Further east, the mood shifts completely. The Gothic choir is tall and narrow, with slender columns that seem almost too thin for the weight above them. In fact, the builders pushed the structure hard, and the choir has needed support and repair over the centuries. Between nave and choir stands a carved rood screen from the sixteenth century, the work of the Antwerp sculptor Cornelis Floris. A rood screen is a decorated partition that once separated the clergy from the congregation.

The cathedral's treasury holds one of its greatest objects. It is the Shrine of Our Lady, a large reliquary made in the early thirteenth century by the goldsmith Nicholas of Verdun. A reliquary is a precious container for holy relics. This one is gilded and set with enamel and stones, with figures that seem to move inside their robes. Nicholas was among the finest metalworkers of his age, and his figures show a new, lifelike way of seeing the human body.

In 1999, a violent storm struck Tournai. A tornado-like wind damaged the cathedral, and experts found serious structural problems in the building. What followed was one of the longest restoration campaigns in Belgium. For years, parts of the church were closed or wrapped in scaffolding. Archaeologists also used the opportunity to dig beneath the floor and found traces of the earlier churches on this site. If you see scaffolding today, you are watching a long story of care still in progress.

In 2000, UNESCO added the cathedral to its World Heritage List. The listing recognised it as a key example of the move from Romanesque to Gothic in this part of Europe. Not far away stands the city's belfry, the medieval bell tower that once watched over the town and sounded its alarms. It is also protected by UNESCO, as part of a group of belfries across Belgium and northern France. Together, church and belfry show two sides of medieval life: faith and civic pride.

Walk around the outside before you leave. On the north side, look for the carved doorway known as the Porte Mantile, with its sculpted figures worn soft by centuries of weather. On the western front, a porch holds rows of carved figures added over several centuries. The faces are worn, some almost erased, but the rhythm of the rows remains. The surrounding streets are narrow and quiet, lined with cafés, and the Grand-Place is only a short walk away.

Before you go, find a spot where you can see all five towers at once. Notice how the dark stone changes as clouds pass over. Listen for the bells, the traffic, the pigeons on the ledges. Builders here worked for generations, and they did not see the finished church. Restorers are still working on it today. As you walk away, look back once more. The towers will stay in view for a long time, above the roofs of the old town.