When travelers picture the architectural marvels of Türkiye, their minds instinctively drift toward the soaring, majestic domes of Istanbul’s Hagia Sophia or the mesmerizing, azure-tiled courtyards of the Blue Mosque. These aboveground monuments are celebrated worldwide as testaments to human ingenuity, artistic mastery, and historical grandeur. Yet, some of the nation’s most astounding engineering feats remain entirely out of sight, concealed deep beneath the bedrock of the Anatolian plateau.
Among these hidden subterranean wonders is Sarayini, an eighth-century underground city tucked away beneath the Sarayönü district in the Konya metropolitan area. Spanning an estimated 215,000 square feet, this sprawling labyrinth of interconnected chambers, corridors, and workspaces redefines what modern observers expect from ancient underground sanctuaries. Far from being a cramped or primitive hiding hole, Sarayini features roughly 30 excavated rooms—with many more left to uncover—complete with barrel-vaulted ceilings, sophisticated ventilation systems, functional storage cellars, and even a fully equipped working wine press.
While Türkiye is home to dozens of subterranean settlements, Sarayini stands out as one of the largest and most advanced complexes ever discovered in the region. Built not for luxury, but out of sheer necessity for survival, the site offers a fascinating glimpse into a hidden world where ancient communities maintained a surprisingly high quality of life while evading relentless persecution.
What is Sarayini?
Stretching beneath the modern landscape of the Sarayönü district, Sarayini is an intricate, multilevel network designed to sustain human life entirely cut off from the surface. The subterranean complex features roughly 30 documented chambers, several of which boast barrel-vaulted ceilings, expertly carved chimneys, secure storage rooms, deep cellars, and vital water wells. Archaeological assessments indicate that the complex dates back to the eighth century, constructed primarily by local Christian communities seeking refuge from the intensifying religious and political persecution of the Roman Empire and regional Muslim leaders.
Hasan Uğuuz, a Konya Museums archaeologist who directed the site’s excavation efforts in 2023, noted that the archaeological teams working on-site were initially caught off guard by the sheer scale of the settlement. Rather than a modest collection of makeshift tunnels, the excavation revealed an expansive urban environment. Researchers and local media outlets have even dubbed one particularly wide subterranean thoroughfare the "main street," highlighting the sheer scale of the corridors.
The spaces within Sarayini have frequently been likened to underground palaces. The architectural thoughtfulness, structural stability, and capacity to support complex daily operations challenge the conventional assumption that subterranean refuges were desolate, desperate places meant only for brief, uncomfortable hiding.
"The name Sarayini essentially means ‘the palace cave,’" explains Davide Tanasi, an archaeologist, professor of history, and associate department chair at the University of Florida. "It is what 19th-century travelers and locals have always called it, because the architecture is so spacious. We imagine underground refuges as desperate places, and Sarayini turns that on its head with features like wide corridors, wine production, and water for thousands. Even in hiding, these people insisted on living well."
The presence of a dedicated winery serves as one of the clearest indicators of the lifestyle cultivated within Sarayini. Archaeologists uncovered a marble grape-crushing installation complete with preserved grape seeds still resting in place, alongside grooved channels engineered to funnel freshly pressed juice directly into storage cubicles. Furthermore, researchers have identified structures resembling stables carved directly into the rock, providing enough space to shelter livestock alongside human inhabitants. Coupled with small, rock-cut chapels, these detailed amenities demonstrate that Sarayini was meticulously planned to sustain long-term daily life rather than merely provide temporary shelter.
How was Sarayini Built?
The creation of Sarayini was an exercise in monumental patience, foresight, and advanced geological understanding. Rather than being constructed from the ground up with masonry and mortar, the entire city was subtracted from the earth over multiple generations.
"It was not ‘built’ so much as carved," Tanasi explains. "Subtracted from the rock over generations, with picks, patience, and a very good understanding of the ground. Everything people needed came with them, such as wells, cisterns, ovens, kitchens, and workshops."
Much like Derinkuyu, one of Türkiye’s most famous underground cities, Sarayini relies on an intricate network of vertical ventilation shafts and chimneys to keep fresh air circulating smoothly through even the deepest, most remote chambers. This sophisticated approach to subterranean architecture did not emerge in a vacuum; it was the product of a long-standing regional tradition.
Konya sits squarely in the heart of Anatolia, a geographical region with a rich history of rock-cut construction. Ancient civilizations such as the Hittites and Phrygians, who once dominated central Anatolia centuries earlier, left behind some of the earliest known rock-cut chambers in the area. Their foundational engineering traditions laid the groundwork for future generations. By the time Byzantine-era communities were expanding similar sites across the region, the practice of carving entire self-sustaining communities into soft volcanic rock, known as tuff, was already a deeply established cultural technique.
"The engineering is remarkable," Tanasi adds. "These were not people cowering in a hole; they were running an economy underground."
How Was Sarayini Discovered?
Despite its historical significance, the modern understanding of Sarayini’s true scale did not begin in an academic archive or a high-tech laboratory. Instead, it started by listening to the local community.
"It was never really lost; this is a story about listening to people," Tanasi says. "Village elders told the survey team they had explored the tunnels as children and described an enormous underground city. The archaeologists were skeptical, then realized at least half of it was true."
Following these accounts, a systematic excavation effort began, quickly revealing that the site was vastly larger than initial estimates suggested. An early assessment placing the city at roughly 5,000 square meters quickly ballooned to at least 20,000 square meters, or approximately 215,000 square feet. Subsequent employment of ground-penetrating radar uncovered an entirely separate underground city located just one kilometer north of Sarayini. This northern site is connected to Sarayini via hidden tunnels and centers on a massive water cistern capable of supplying a community of around 20,000 people.
"We did not think that it could spread over such a large area," Uğuuz told reporters during the 2023 excavation phase. "During the surface surveys, the old men living here said that they had visited this place when they were children and that it was a very large underground city."
Excavation work at Sarayini has been ongoing for several years, mirroring a broader trend in Turkish archaeology where ancient underground cities are continuously brought to light, though most remain only partially explored. The 2024 discovery of the adjacent underground city has prompted researchers to investigate whether the broader region conceals one continuous, interconnected subterranean network rather than a series of isolated sites. This ongoing inquiry could fundamentally reshape how historians understand subterranean settlement patterns across the entire Anatolian plateau.
Can You Visit Sarayini?
For travelers hoping to explore Sarayini firsthand, access remains strictly limited. The site is not currently open to the general public, as active archaeological excavations are ongoing. Much of the subterranean network remains structurally unstable or only partially cleared of debris, and researchers are continuously mapping newly discovered corridors using advanced ground-penetrating radar.
While local officials and cultural authorities have expressed strong interest in eventually opening the site to tourism, positioning it as a major upcoming cultural destination, no official timeline for public access has been announced.
In the meantime, experts suggest turning to more accessible counterparts to experience Anatolia’s unique subterranean heritage.
"In the meantime, Cappadocia’s Derinkuyu underground city gives you a great taste of this Anatolian tradition," Tanasi suggests. "But keep an eye on Sarayini; it will be worth the wait."
