cromlech

A cromlech is an archaeological term with two primary meanings. It can refer to a dolmen, which is a single-chambered megalithic tomb. More distinctively, a cromlech is a circle of standing stones, or monoliths, that typically encloses a dolmen or a mound.12

The word "cromlech" originates from Welsh, combining "crom" (bent) and "llech" (flat slate). While the exact purpose of cromlechs remains a subject of speculation, theories suggest they may have served as sacrificial altars, burial monuments, or structures for astronomical observation. These ancient stone circles demonstrate the engineering capabilities of early peoples. A stone circle is a similar term, specifically referring to a circle of stones built by ancient peoples, often enclosing a mound or dolmen.23