Tower of Hercules

Wind is the first thing you notice here. It comes straight off the Atlantic, cool and salty, and it pushes against you as you climb the gentle slope toward the tower. Underfoot, the grass gives way to gravel and then to stone. Above you, a pale square column rises against a sky that can change from grey to brilliant blue in a few minutes. Gulls ride the air currents beside it. This is the Tower of Hercules, and it has guided ships toward this rocky corner of Spain for close to two thousand years.

Begin with the simplest and most surprising fact. This is a Roman lighthouse, and it still works. It is the oldest Roman lighthouse in the world that is still in use. Ancient lighthouses once stood at Alexandria, at Ostia, and at ports all around the Mediterranean. Almost all of them have fallen or vanished. This one has survived, and its lamp still turns at night over the same waters that Roman sailors once feared.

The Romans called this settlement Brigantium. It sat at the edge of their known world, where the land of Galicia meets the open ocean. Beyond this coast, there was nothing on their maps but water. Ships carrying tin, metals and goods moved along these shores between the Mediterranean and the islands of the north. The sea here is rough, the rocks are sharp, and fog arrives without warning. A tall light on this headland made sense for trade and for survival.

The tower is usually dated to the late first or early second century, during the age of the emperor Trajan. Here is a detail many visitors walk straight past. At the foot of the tower, a stone carries a Latin inscription with the name of the builder. He was Gaius Sevius Lupus, an architect from Aeminium, the Roman town that is now Coimbra in Portugal. It is rare to know the name of a Roman engineer. Here, he left it in stone, dedicated to Mars.

Now look closely at the walls. The smooth, neat stone you see today is not Roman. In the late eighteenth century, under King Charles the Third of Spain, the tower was restored and wrapped in a new neoclassical shell. The engineer in charge was Eustaquio Giannini. He added the upper stage and the dome-like top. But he did something thoughtful. He preserved the Roman core inside, so the ancient tower still stands within the newer one.

There is a second detail on the outside that is easy to miss. Look for the diagonal band that climbs around the walls. It looks like decoration, but it carries a memory. Historians believe the Roman tower had an external ramp that wound up around the outside. People may have carried fuel up this ramp to feed the fire at the top. The eighteenth century restorers marked its path on the new facade, like a shadow of the old structure.

When you go inside, the mood changes. The wind disappears and the air turns cool and still. At the lower level, you can see the rough Roman masonry and the foundations of the original building. Stone blocks, mortar and old walls sit under soft light. Then the stairs begin. The climb is steep and narrow, and it takes some effort. But the reward at the top is a wide view of the ocean, the city and the long curve of the coast.

Of course, a tower this old collects stories. The name itself comes from a legend. According to one popular tale, the hero Hercules fought a cruel giant called Geryon on this coast. The fight lasted for days. Hercules won, buried the giant's head here, and built a tower over it. This legend is still part of daily life in A Coruña. The city's coat of arms shows a tower above a skull and crossed bones. Look for it on buildings around town.

There is another legend, and this one travels north across the sea. Old Irish tradition tells of a Celtic king called Breogán, who is said to have built a tower here. From the top, his son Ith saw a green land far away on the horizon. That land, the story says, was Ireland. The tale links Galicia to the Celtic world, a connection many Galicians still feel strongly. A large statue of Breogán stands near the tower, facing the ocean.

In 2009, the Tower of Hercules became a UNESCO World Heritage Site. UNESCO is the United Nations organisation that protects places of global cultural value. The listing recognised the tower as a rare surviving example of a Roman lighthouse. It also recognised the way it has kept its original purpose for centuries. Very few ancient buildings still do the job they were built for. This one does.

Take time to walk the park around the tower. It is full of sculpture and open space. You will find a large compass rose set into the ground, made of stone mosaic, with the names of Celtic lands placed around it. Nearby, tall stone slabs with openings stand in the grass. They are called the Menhirs, and they frame the sea and sky through their holes. Further along, a quieter memorial remembers people who were executed here during the dark years after the Spanish Civil War.

The headland also gives you the best sense of how A Coruña sits in the landscape. The city spreads across a narrow peninsula, with water on almost every side. From here, you can see the rocky shoreline, the waves breaking white, and the fishing boats moving out to sea. On a clear day, the light is sharp and silver. On a misty day, the tower rises out of the fog, and you understand very quickly why sailors needed it.

Before you leave, stand still for a moment and look up at the top of the tower. Imagine the Roman fire burning there, and then the oil lamps, and then the electric light that came much later. Every generation has kept the light going. Feel the wind again on your face, hear the gulls and the waves below. As you walk back down the slope, turn around once more. The tower is still watching the sea, just as it has for almost two thousand years.