St Gregory the Illuminator Church is one of Kayseri's important reminders that the city was historically home to more than its Seljuk, Ottoman, and modern Turkish layers. The Armenian church stands as a rare surviving marker of a community that was once part of the city's urban fabric.
The building is most meaningful for visitors interested in religious and minority history in central Anatolia. Access can be more limited than at standard tourist sights, so check locally before assuming you can enter, and approach the site as a place of memory as much as architecture.