Üzülmez Culture Valley, in Zonguldak–Ankara Highway, is a cultural project credited to Buda Architecture (2024). It is exactly the kind of building where a stone choice is meant to still look correct in fifty years, which makes the specification worth studying. To be clear: this is not a DIJA project, and we did not supply the material — it is included here purely as a documented reference.
Unlike some of the more thoroughly documented entries in this archive, the source record for this project does not list specific stone types or applications.
With no documented stone type to go on, a few general suggestions from our own range that would suit a project of this kind: Black Galaxy Granite.
The architect's own account, and the photography that goes with it, is one click away at the source link.