Surveys indicate that about 15 additional rings of huge stones may remain buried beneath Göbekli Tepe's soil.
Notes on verification
Confirmed by peer-reviewed Cambridge Archaeological Journal paper citing geomagnetic survey data, corroborated by multiple independent sources including Smithsonian and DAI's official blog. Minor variation in exact number (15-20) across sources reflects evolving survey estimates but core claim is well-supported.
Sources
- Did Geometry Guide the Construction of the World's Oldest ... (smithsonianmag.com)
- https://www.cambridge.org/core/journals/cambridge-archaeological-journal/article/geometry-and-architectural-planning-at-gobekli-tepe-turkey/2CBAF416E33AFE6496B73710A2F42FF9 (cambridge.org)
- https://www.dainst.blog/the-tepe-telegrams/2018/07/18/looking-beneath-the-surface-geophysical-surveys-at-gobekli-tepe/ (dainst.blog)
- https://www.crystalinks.com/gobekli_tepe.html (crystalinks.com)