What is Happening Inside This White Giant?
What You Didn't Know About the Architecture of Azadi Tower
"What is happening inside this white giant?" This is the question that sparks curiosity every time people pass by Azadi Square. After all, it catches our eye at least once a year, dominating the news, photographs, and media footage on special occasions. The architecture of Azadi Square, anchored by its famous tower, forms a centerpiece of our collective memory. Serving as the ultimate symbol of Tehran, it unfailingly captures the gaze of international visitors. Even with the emergence of a towering rival like Milad Tower, Azadi Tower retains its iconic reign over the city skyline.
The White Giant That Was Never Forgotten
A few years ago, the management and maintenance of the interior spaces of Azadi Tower were entrusted to the Roudaki Foundation. Consequently, an entity named the "Islamic Revolution Cultural and Artistic Center" was established beneath the tower base to revitalize the neglected subterranean museum complexes that had been gathering dust for years. Today, the entire tower has been restored into a captivating cultural destination.
Hamrah, the director of the Islamic Revolution Cultural and Artistic Center, notes: "The architecture of Azadi Tower is executed in such a way that it incorporates design elements spanning Iran's entire history, from the ancient pre-Islamic era to the Islamic period. This synthesis is perhaps the most fascinating aspect that subliminally catches the attention of any observer.
From the parabolic arch of the tower base—symbolizing the ancient Taq Kasra—to Safavid-era turquoise tilework, and even the vertical structural grooves atop the tower reminiscent of Yazd's traditional windcatchers (Badgirs), every detail is thoughtfully integrated. The juxtaposition of these traditional motifs with exposed concrete structural elements and modern architectural symbolism endows the overall elevation of Azadi Square with extraordinary visual appeal."
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A Journey into the Depths of Azadi Square's Architecture
The tour begins at the lower-level entrance stairwell—a spot where visitors can gaze up at the towering edifice while listening to the guide's orientation. The guide offers insights into the construction history and key architectural statistics, such as the use of 25,000 custom-cut stone blocks in over 15,000 unique geometric shapes. The heavy main door leaves are crafted from solid stone blocks, each weighing approximately 3.5 tons, engineered with durable granitic stone components.
Stepping inside, familiar ambient audio welcomes visitors into the Iranology Hall. A silent moving walkway carries visitors over a 15-to-20-minute journey across stylized relief maps representing Iran's diverse provinces—marked by cultural icons such as a tractor representing Tabriz or caviar for Guilan. The journey spans seamlessly from the Persian Gulf to the Caspian Sea, culminating in the soothing sound of an artificial waterfall symbolizing the northern coast, complemented by an exit corridor aquarium and four projection screens displaying historical documentary films.
The subsequent hall is the Hall of Mirrors, designated as the "Diorama" hall. Flanking both sides are 12 miniature showcase booths containing 3D volumetric scale models depicting national industrial and cultural achievements. The hall derives its name from strategically angled surrounding mirror panels that create optical illusions, making each compact display chamber appear significantly larger than its actual dimensions.
The next section caters to modern art enthusiasts—a gallery space dedicated to Conceptual Art installations featuring metallic sculptures, iron spears, chairs, and steel doves. The complex also houses a temporary art gallery featuring rotating themed painting exhibitions, a library holding approximately 12,000 volumes, and an interactive digital kiosk area equipped with 28 touchscreen monitors offering detailed media on Iran's historical monuments and geography.
From here, the highlight of the tour begins: "Taking the elevator to ascend into the sky."
Tehran from Above
Ascent through the tower relies on two distinct elevator shafts integrated into the inclined concrete core. The journey is divided into two legs because each elevator only ascends two levels before reaching an intermediate concrete floor slab. The first elevator accesses the second level, while the second elevator completes the vertical trip to the top. The upper tour begins at the pinnacle, situated directly beneath the turquoise-tiled roof dome.
This is the fourth floor, centered around a turquoise-tiled minaret structure and offering a panoramic view of Tehran from a height of 40 meters. Turquoise glazed tiles wrap spirally around the central shaft. From this vantage point, visitors can observe the four quadrants of Azadi Square through transparent acrylic window openings—a panoramic view that becomes exceptionally mesmerizing at night.
After spending a few minutes beneath the upper roof vault, visitors descend through a spiral staircase that connects all four interior levels, comprising a total of 286 individual steps.
The third floor serves as the Revolution and Freedom Gallery, showcasing curated contest photographs featuring Azadi Square and historical events. Inspecting the interior masonry here reveals the seamless integration of traditional Iranian vaulting with modern structural engineering. As the guide points out, the geometric concrete ceiling ribbing directly evokes the intricate dome patterns of the Sheikh Lotfollah Mosque in Isfahan.
Continuing down the staircase leads to the second floor at an elevation of 23 meters. This level highlights the raw architectural geometry of the structure, featuring inclined concrete shear walls inset with small blue-tinted windows nestled right beneath the main arch. Looking up towards the upper window recesses, one can spot historical graffiti left by past visitors—a testament to the daring heights people once scaled along these imposing sloped concrete walls.
The Story of a Square
In 1966, a national architectural competition was held to design an iconic landmark for Tehran. The winning design was submitted by a 24-year-old recent graduate of the University of Tehran (Hossein Amanat). Construction began on November 2, 1969, and after 28 months of intensive engineering work, the monument was officially inaugurated on January 14, 1972. The architectural design represents a synthesis of three distinct historical Iranian eras: Achaemenid, Sasanian, and Islamic.
The base of Azadi Tower spans 63 meters in length, with a total height of 45 meters, while the central main arch rises to a height of 31 meters. The subterranean spaces were expertly planned for cultural and exhibition functions, evidenced by the extensive network of halls, galleries, and museums beneath the plaza.
Perhaps the most intriguing architectural trait of Azadi Tower is the continuous vertical openness; looking upward from almost any level, the ceilings feature void openings and oculi that afford vertical sightlines to the floor above—a structural design theme consistently repeated across every level of this masterwork.
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