Unchanged for thousands of years, experts believe the monument must have been used for prehistoric rituals ... that the mysterious Calanais Standing Stones were erected as early as B.C. 2900 ...
Free entry to one of the Western Isles' best-known and ancient sites could end under ... Calanais - also known as Callanish - Standing Stones in Lewis are 5,000 years old and were used for rituals ...