Azadi Tower

Stand still for a moment and listen. Traffic circles you on every side, a steady roar of engines, horns, and tyres on asphalt. Then lift your eyes. Out of all that motion rises a pale stone shape, smooth and calm, splitting at its base into a tall arch. On a clear morning the white marble catches the light, and behind it, if the air allows, the Alborz Mountains stand to the north. This is Azadi Tower, the great gateway of Tehran.

For many travellers, this is the first landmark they see in the city. The tower stands in western Tehran, close to the old Mehrabad Airport and the main roads leading in from the west. For decades, people arriving by car, bus, or plane passed it on their way into the capital. So it works almost like a front door. It is a monument built to say, here is Tehran, and here is Iran.

The tower was completed in 1971. It was built for a huge state celebration that year, marking two and a half thousand years of the Persian monarchy. That anniversary looked back to Cyrus the Great, the founder of the first Persian empire. The government of the Shah wanted a modern symbol that also carried that long memory. The result is the structure in front of you — new concrete and stone, shaped by very old ideas.

Here is the first thing many visitors do not know. The tower was not always called Azadi. When it opened, it carried the name Shahyad, which means roughly a memorial to the Shah, or to the kings. After the revolution of 1979, the name changed to Azadi, a Persian word that means freedom. The stones stayed the same. The meaning that people gave them changed almost overnight.

The square around you played a central part in that change. During the revolutionary months of 1978 and 1979, enormous crowds gathered here. Photographs from that time show the tower rising above a sea of people. Since then, the square has remained a place for large public gatherings, national events, and official rallies. When you stand here, you are standing in one of the main public stages of modern Iranian history.

Now for the second surprise. The architect was a very young man. Hossein Amanat won a national design competition for the monument while he was still in his twenties, only recently out of university. It was his first major work, and it became the defining image of his career. He later left Iran after the revolution and continued his work abroad. Yet this early design remains his best known building, and one of the most recognised shapes in the country.

Look closely at the form. The great central arch recalls the arches of Sasanian Persia, the empire that ruled before the arrival of Islam. The most famous example is the vast brick arch of a royal palace near ancient Ctesiphon, in present-day Iraq. Above that, the curving upper section follows the pointed lines of Islamic architecture, the kind you see in the mosques of Isfahan. In one building, the architect joined these two great chapters of Iranian design.

The outside is covered in white marble, brought from quarries in the region around Isfahan. The stone is cut into thousands of separate blocks. Each block had to fit a curved, twisting surface, so almost none of them are simple rectangles. This was difficult to calculate in the late nineteen sixties. Engineers used early computer modelling to work out the shapes of the stones. In its time, this was quite advanced work for a monument of this kind.

Walk closer and look up into the arch. The underside is not plain. You will see a pattern of ribs and openings, and in the upper parts, panels of blue and turquoise tile. These colours connect the tower to the tiled domes of older Persian buildings. The pattern also lets light pass through in thin lines. In the late afternoon, the inner surfaces shift from cream to gold to soft grey as the sun moves.

The tower is not only a sculpture. It is also a building you can enter. Beneath it, below the level of the square, there is a museum and exhibition space. Over the years it has displayed objects from Iran's long past, including pottery, artworks, and historical pieces. Inside the tower itself, a lift and stairs lead upward to an observation level near the top. From there, you can look out across the city in every direction.

If you go up, take your time at the windows. Tehran spreads out flat and wide below you, a grid of roads, apartment blocks, and green patches of park. To the north, the mountains rise sharply behind the city, often with snow on the peaks for much of the year. On hazy days the view is softer, more like a pencil drawing. On clear days, especially after rain or wind, you can see a remarkable distance.

Down at ground level, the square has its own rhythm. Families walk on the paths and the grassy areas around the base. Young people stop for photographs with the arch behind them. In the evening, lights come on and the white stone glows against the dark sky. The noise of the traffic never really stops, but the open space around the tower gives you a little room to breathe, even in this enormous city.

Before you leave, step back to the edge of the square and look at the tower one more time. Notice how the shape changes as you walk around it. From one side it looks almost like a tall, narrow gate. From another, it spreads wide like a tent pulled tight. A building made for kings, renamed for freedom, now simply part of daily Tehran life. As you walk away, listen again to the traffic — and let the white arch stay in the corner of your eye a little longer.