menhir

In archaeology, one of a class of monumental stones of greater or less antiquity, found in various parts of Europe, also in Africa and in regions of Asia, especially in the Khassian hills.

A large stone set upright in olden times as a memorial or monument. Many, of unknown date, are found in Brittany and throughout Northern Europe.

A single tall standing stone as a monument, especially of prehistoric times.

a tall upright megalith; found primarily in England and northern France