henge

noun Archaeology.

1. a Neolithic monument of the British Isles, consisting of a circular area enclosed by a bank and ditch and often containing additional features including one or more circles of upright stone or wood pillars: probably used for ritual purposes or for marking astronomical events, as solstices and equinoxes.

noun

1. a circular area, often containing a circle of stones or sometimes wooden posts, dating from the Neolithic and Bronze Ages