Sunk relief consisted of cutting an image into a flat surface and was a common technique used in what?

Sunk relief, a technique where images are carved into a flat surface so that they are set below the surrounding area, was commonly used in ancient Egyptian art and architecture. This method allowed for detailed depictions of figures and scenes, often in temples and tombs, emphasizing their significance in religious and cultural contexts. The technique contributed to the durability of the images, as they were less prone to wear compared to raised reliefs.