Göbekli Tepe predates Stonehenge by roughly 6,000 years.
Notes on verification
Widely corroborated by Britannica, History.com, and other encyclopedic sources; minor variance (6,000-7,000 years) depending on exact dating benchmarks used, but the ~6,000 year figure is standard.
Sources
- Did Geometry Guide the Construction of the World's Oldest ... (smithsonianmag.com)
- https://www.history.com/articles/gobekli-tepe (history.com)
- https://www.thetravel.com/gobekli-tepe-vs-stonehenge-which-is-older/ (thetravel.com)