Tuesday, 13 October 2026Est. MMXXVI · Long after anyone remembers why@historicjots
historicjots

A field journal of history that refuses to end

Landmark·1963

The City Behind the Basement Wall

A discovery account from 1963 leads beneath Cappadocia into a rock-cut refuge whose rooms are easier to inspect than its limits are to measure.

Plate I. A shaft photographed inside Derinkuyu in 2022; the source does not identify its individual depth or whether this shaft served as a well. Joe Wallace · Source · CC BY-SA 2.0

A basement wall is the small detail in the familiar story of Derinkuyu. In the account, a resident renovating his house in 1963 opens a way into passages beneath the town. A domestic repair becomes an entrance to something much larger. The wall is memorable because it puts an underground refuge within reach of an ordinary room.

The local authority records the rediscovery year. Architectural researchers likewise connect the 1963 discovery with renovation work at houses on the site. The resident and the scene belong to a frequently repeated account, rather than a contemporaneous eyewitness document presented by these sources. That is a useful distinction to make before descending.

Rooms beneath the rooms

Derinkuyu lies in Cappadocia, in central Turkey’s Nevşehir Province. Its spaces were cut into volcanic tuff, a relatively soft rock that could be carved into chambers and connecting tunnels. The complex includes storage spaces, stables and places of worship. Large stone closures could block its passages. Ventilation shafts and wells supplied a refuge whose occupants needed more than a place to hide.

The architecture makes the idea of shelter unusually literal. A room below ground needs a route for people, a route for air and a way to control its entrance. The same narrow passage that connects two spaces can also become a boundary. Seen that way, the doors and shafts are as important to the story as the chambers.

The numbers below

Eight cleaned levels have been opened to visitors. The extent beyond them is less settled. The local authority describes an estimated total depth of 85 metres, while a 2023 architectural study notes that the full depth and number of floors remain unclear. Counting floors in a network with intermediate levels is itself a problem.

The often repeated capacity of 20,000 people is also an estimate. The architectural study records different interpretations of that number in earlier literature. It is not a census of people known to have occupied the refuge together.

The discovery account offers a satisfying beginning: a wall, a passage, a way down. The surviving rooms offer evidence of earlier occupants and their need for shelter. What neither supplies is a tidy ending to the measurements. Finding an entrance is not the same as reaching the limits of what lies behind it.

Plate II. A rolling stone door at Derinkuyu, photographed in 2012; large stone closures protected passages in the underground complex. TobyJ · Source · CC BY-SA 4.0
Plate III. A rock-cut staircase at Derinkuyu, photographed in 2012; eight cleaned levels are described in both the local authority’s account and architectural research. TobyJ · Source · CC BY-SA 4.0
Plate IV. A corridor photographed inside Derinkuyu in 2009; its exact level is not identified in the source metadata. Bjørn Christian Tørrissen · Source · CC BY-SA 3.0
Plate V. St Theodore’s Church above ground in Derinkuyu, photographed in April 2026; this exterior view is not a photograph of the underground church. Codas · Source · CC BY-SA 4.0

Notes & Sources

  1. Yeraltı Şehrimiz. Derinkuyu District Governorate. Records the 1963 rediscovery, eight cleaned visitor levels and an estimated 85m total depth; acknowledges uncertain early history.
  2. Derinkuyu Yeraltı Şehri. Turkish Ministry of Culture and Tourism. Describes the eight-level complex, connected rooms, storage, ventilation, wells, worship spaces and defensive stone closures.
  3. Section Grammars: An Experimental Study on Decoding Forms of Underground Cities. Ekin Ünlü, Orkan Zeynel Güzelci and Sema Alaçam, Istanbul Technical University / SIGraDi 2023. Independent architectural analysis: 1963 house renovations, soft volcanic tuff, eight visitor floors, and uncertain total depth, levels and capacity; identifies sources behind different estimates.
  4. Why the cave cities of Turkey’s Cappadocia are best explored on foot. National Geographic Traveller (Daniel Stables, 2024). Independently reported visit with a guide: modern visitor tunnels, the repeated 1963 discovery story and underground stables, churches and wine presses. Discovery scene is a reported account, not a contemporaneous record.
  5. Derinkuyu: Mysterious underground city in Turkey found in man’s basement. Frank Jacobs / Big Think, reprinted by Freethink (2022). Secondary synthesis corroborates the repeated basement account, rock-cut refuge, uncertain origins and defensive closures; this reprint and Big Think count as one source. Its erroneous feet/metres conversion is not adopted.

Reference video

Facts checked against the sources above on 13 October 2026. Corrections are welcome via @historicjots.