Oscar Niemeyer International Cultural Centre

Listen first. Gulls call over the water, and somewhere behind you a ship's engine hums along the estuary. Under your feet the open square is pale and smooth, and it holds the light. Around you the white curves of concrete rise from the ground like shapes drawn with a single stroke of a pen. Welcome to the Oscar Niemeyer International Cultural Centre, in Avilés, on the northern coast of Spain.

Let us start with the man behind it. Oscar Niemeyer was a Brazilian architect, one of the great names of twentieth century modernism. He is best known for the government buildings of Brasília, the capital that Brazil built from scratch in the middle of the last century. His signature was the curve. He once described the free, sensual curve as the thing that moved him most, more than the straight line or the right angle. Look around you now. There is hardly a straight edge in sight.

So why is his work here, in a modest industrial town in Asturias? The story begins with an award. In 1989 Niemeyer received the Prince of Asturias Award for the Arts, one of Spain's most respected cultural prizes. Years later, to mark the anniversary of the awards, he offered a design to the region as a gift. It is widely described as his only work in Spain. That alone makes this square unusual — a piece of Brazil, set down on the Cantabrian coast.

Here is the first surprise. When the centre opened in 2011, Niemeyer was more than a hundred years old. He was still drawing, still sending sketches, still thinking in curves. He died the following year, at the age of one hundred and four. Many of the buildings you see began as quick, loose drawings on paper. When you look at these smooth forms, you are looking at some of the last ideas of a very long life.

Now look at the setting. This land was once industrial. Avilés grew in the twentieth century around steelworks, the port and heavy industry, and the estuary carried that work out to sea. When industry declined, the town needed a new direction. The centre was placed on the far bank of the estuary, facing the old town. The idea was simple, and bold. A cultural centre could pull people across the water and help the town see itself differently.

The complex is made of a few clear pieces, arranged around this open square. Think of the square as the stage that holds everything together. It is large, flat and open, with almost nothing to block the view. Niemeyer loved open public space. He wanted people to walk, gather and look. On a calm day the square feels quiet and wide. During a festival or a concert it can fill with people, and the white buildings become a backdrop.

The most recognisable shape is the dome. It sits low and round, like half of a giant white egg resting on the ground. Inside is the main exhibition space, used for art, photography and changing shows. Walk close and run your eyes along its edge. The dome has no visible corners and no columns on the outside. It simply meets the ground. Pause beside it, and notice how the curve bends the light across its surface as the sun moves.

Opposite the dome stands the auditorium, the home of concerts, theatre and dance. Its roof swoops up and over in one long arc. Watch for the colour here. Niemeyer used white as his base, and then added bold touches of colour — look for red and yellow against the pale concrete. Here is the second surprise. The back of the stage can open toward the square. That means a performance inside can also be seen by an audience gathered outdoors.

Now turn toward the slim tower. It rises above the rest of the complex and gives the site a vertical accent. At the top there is space for a restaurant, with views over the estuary and the town. From up there the whole composition makes more sense. You can see how the dome, the auditorium and the square fit together, like objects arranged on a table. If you have the chance to go up, take it.

The centre's early years were not smooth. Soon after it opened, regional politics changed, and the new government and the foundation that ran the centre came into a sharp dispute. Questions about money, management and control led to a period of closure and great uncertainty. People in Avilés protested and campaigned for it to stay open. In time it reopened under new management. It is a reminder that culture is never only about buildings. It is also about who pays, who decides, and who shows up.

Step back for a moment and think about the material. Almost everything here is reinforced concrete — concrete strengthened with steel bars inside. Niemeyer used it the way a sculptor uses clay. Concrete is heavy and hard, yet here it looks light, almost soft. That contrast is the heart of his style. In a town once built on steel, there is something fitting about buildings that depend on steel hidden inside them.

Now turn around and face the water. Across the estuary you can see the old town of Avilés, with its older roofs and church towers. This view matters. The centre was designed to talk with the town across the water, the new facing the old. Walkers, cyclists and families move along the waterfront. Boats pass slowly. In the evening the white buildings catch the last warm light and seem to glow against the darkening sky.

As you leave, take one more slow look around the square. Notice how the shapes change as you move. The dome grows rounder, the auditorium roof lifts higher, the tower slides behind them. Listen again for the gulls and the engines on the water. This place began as a sketch by a man past one hundred, a gift to a town looking for a new future. Now it belongs to everyone who walks across this open, quiet ground.