Circular lower square paving

Quick answer：

Circular lower square paving refers to the decorative paving design commonly used in public spaces, especially in the lower level of a square. It typically involves the arrangement of tiles or stones in a circular pattern, creating an aesthetically pleasing and functional surface. This type of paving is often seen in urban landscapes, parks, and gardens, where it serves both a practical purpose of providing a stable walking surface and an aesthetic one of enhancing the overall design of the area.