Kharchkar or Aremenian cross stones

 A distinctive feature of Armenian art are Kharchkar or Cross Stones. As they are usually located in and around churches, the natural assumption is that kharchkar are tomb stones. While some do commemorate a dead person, they can mark any momentous event such as a victory in battle, an important treaty or a church dedication. They could be erected by a living person asking for prayers and of course requesting prayers for the dead. Some are engraved with the name of the artist or the benefactor but the most have no writing and
feature a cross detailed with leaves, grapes, pomegranates or other decorative features.

The oldest date from the 8th century and are very Celtic is style and feel, though it would be hard to tell who inspired who.