Historic City Of Yazd

In the center of Iran, where the Lut and Kavir deserts meet, an expansive mud-brick city rises from the golden sands. This is the Historic City of Yazd, one of the oldest adobe settlements on Earth. Looking over the rooftops of Yazd, the first things that catch the eye are the tall, slatted towers rising into the sky. Called badgirs—literally windcatchers—these structures are masterfully designed natural air-conditioning systems that operate without electricity or machinery. They capture even the slightest desert breeze high above, funneling it down over cool pools of water to lower the temperature inside the homes during the scorching desert summers.

Rather than fighting the hostile, waterless environment of the desert, the people of Yazd adapted to it, bringing water to the city via qanats—a network of underground aqueducts stretching for hundreds of kilometers.

Mud-Brick Labyrinths

The streets of Yazd are narrow, high-walled alleys (kuches), often covered by vaults. This architecture was designed to maximize shade, keeping the streets cool enough for residents to walk comfortably. Yazd also served as a primary sanctuary for Zoroastrianism, the ancient monotheistic religion of Persia. Due to its isolated desert location, the city remained a safe haven for Zoroastrian culture and faith after the Islamic conquest.

At the heart of the city's Zoroastrian heritage is the Yazd Ateshkadeh (Fire Temple). The temple's modest building features a classic portico topped by a carving of the Faravahar—the winged, human-headed figure representing the core Zoroastrian tenet of good thoughts, good words, and good deeds.

The Fire That Outlasted Empires

Inside the temple, behind glass partitions, burns a sacred fire in a large bronze vessel. This is no ordinary fire; it has been kept burning continuously by Zoroastrian priests since 470 AD, transferred from temple to temple before finally finding its home in Yazd.

For over 1,500 years, the flame has never been allowed to die. In Zoroastrianism, fire is a symbol of purity, light, and the presence of the creator Ahura Mazda. Today, priests continue to tend the flame several times a day, feeding it only clean, dry wood from almond or apricot trees.

On two barren hills on the outskirts of the city stand the Dakhmehs, or Towers of Silence. According to Zoroastrian belief, earth, water, and fire are sacred elements that must not be polluted by the decay of human bodies. Traditional burials or cremation were therefore forbidden. Instead, the dead were placed on the open platforms atop these towers, where their bodies were cleansed by birds of prey, and their bones were deposited into central pits. This practice of "sky burial" was maintained until it was banned in the 1970s for health reasons.

Now

The Historic City of Yazd was inscribed as a UNESCO World Heritage site in 2017. Built of mud, straw, and clay, the city's adobe structures face a unique threat: though rain is rare, occasional torrential downpours can melt the ancient mud-brick walls.

Additionally, the drying of the ancient qanats and the encroachment of modern concrete buildings threaten the integrity of the historic core. Local preservationists work to replaster the adobe facades annually using traditional mud-and-straw mixtures (kahgel). Cool in the shadow of its windcatchers and lit by the glow of its ancient fire, Yazd remains one of the desert's most resilient and beautiful monuments of human adaptation.