Torre delle Milizie

Stand still for a moment and tilt your head back. Above you, a square shaft of old brick climbs into the Roman sky, warm and rough, the colour of baked earth. The surface is not smooth. It is pitted and patched, with small dark holes scattered across it like a pattern of stitches. Traffic hums somewhere below, and swifts often cut sharp lines around the upper edges. This is the Torre delle Milizie, the Tower of the Militia, and it has watched over this corner of Rome for roughly eight hundred years.

The tower stands on the lower slope of the Quirinal, one of Rome's seven hills. It rises just above the great curved brick halls of Trajan's Markets, built by the emperor Trajan in the second century as a complex of shops and offices. That pairing is the first thing worth noticing. Ancient Rome lies at the foot of this tower, and medieval Rome sits directly on top of it. The two layers press together here so closely that it is hard to tell where one city ends and the other begins.

The tower itself belongs to the Middle Ages. Most historians date it to the early thirteenth century, when Rome looked very different from the city you see today. The ancient capital of an empire had shrunk. Its population was a fraction of what it once was. Great families fought for control of the streets, and many of them built fortified towers as private strongholds. At one time, medieval Rome held hundreds of these towers. Only a handful survive, and this is among the largest and best preserved.

Why build a tower at all? For a powerful family, a tower was a statement and a shelter. It gave a clear view over rivals' territory. It held stores, weapons and armed men. It could be defended when street fighting broke out, which happened often. The construction is commonly linked to Pope Gregory the Ninth, who came from the Conti family, one of the great noble clans of the period. Over the following decades, ownership passed between several of Rome's leading families.

One of those families was the Caetani, the family of Pope Boniface the Eighth. Under them, the tower became part of a wider fortified complex on this hillside. Think about what that means. A pope, head of the Church, also controlled a military stronghold in the middle of the city. In medieval Rome, faith, family and force were tightly bound together. The tower was not a decoration. It was a working piece of a power struggle that shaped the city for centuries.

Now look carefully at the shape of the tower. Something is not quite right — and that is the first surprise. The tower leans. It is not dramatic, and many visitors walk past without noticing. But if you line up its edge against a nearby vertical, such as a building corner or a lamppost, you will see the tilt. Romans sometimes call it their own leaning tower. Pisa has the famous one, but Rome quietly has its own.

The usual explanation for the lean is a powerful earthquake that struck in 1348. The same year, the Black Death was spreading across Italy, so this was a hard time for the city. The earthquake is believed to have caused the ground beneath the tower to settle unevenly. It also brought down the top section. The tower you see today is shorter than the one its builders finished. Its crown, once higher and probably fortified, was lost.

Look again at the lower part of the tower, and then at the upper part. The base is wide and heavy, built to carry weight and resist attack. Above it, the structure steps back, becoming narrower. This stepped profile is part of what makes the tower so distinctive against the skyline. The brickwork tells a long story of repair. You can see different textures and slightly different colours where workers patched, filled and strengthened the walls over many generations.

And those small dark holes across the surface? They are called putlog holes. Builders pushed wooden beams into them to support scaffolding while they worked. When the job was done, the beams came out, and the holes stayed. They are common on medieval and ancient Roman buildings, but they are easy to overlook. Once you notice them here, you will start to see them everywhere in Rome.

Here is the second surprise, and it is a good piece of folklore. For centuries, a popular tale claimed that the emperor Nero stood at the top of this tower and watched Rome burn during the great fire of the year 64. Some locals even called it the Tower of Nero. It is a vivid image — but it cannot be true. The fire happened more than a thousand years before the tower was built. The legend probably grew because the tower looked so old and so commanding that people wanted to give it an ancient story.

The name itself is also uncertain. Torre delle Milizie means Tower of the Militia, and one theory links it to armed guards stationed here. Other explanations exist, and none is fully settled. It is honest to say that the name is old and its origin is still debated. What is certain is that the tower became one of the clearest landmarks in this part of the city. From the hills around Rome, its blunt silhouette is easy to pick out.

Today the tower belongs to the same museum complex as Trajan's Markets, which houses the Museum of the Imperial Forums. That makes this a good place to think about Rome as a stack of cities. Down below are the halls where Romans once traded and worked. Up here is the stronghold of a medieval noble family. Around you is the modern capital, with its buses, cafés and office windows. All three exist within a few steps of each other.

As you prepare to move on, take one more look up at the tower. Notice how the light falls on the brick. In the morning it can look pale and dusty. Late in the day it turns deep orange and almost glows. Notice the slight tilt, the patched walls, the line where the lost top once continued. Then, as you walk away down toward the Forum, turn back once or twice. The tower will stay in view for a while — a quiet, leaning reminder that this city has always been built on top of itself.