Once there stood a structure built by the Romans near Falkirk, Scotland. It was believed to be a circular temple, shrine or mausoleum. The exact purpose of Arthur’s O’on is not definitively known, but it is believed to have been built during the Roman occupation of Britain, which lasted from the first to the fifth centuries AD. The structure was likely part of the larger Roman frontier defenses and settlements in the area.
The site gained its name Arthur’s O’on due to the local folklore that associated it with King Arthur. However, there are no historical evidence to support the idea that King Arthur had any direct connection to the site.
Unfortunatelly, Arthur’s O’on was dismantled in 1743, likely for its stone materials. The stones were used in various local construction projects, and the site itself was lost. The dovecote at Penicuick House, close at hand, was built as a replica of it.
It was first recorded by Nennius, a Welsh historian and monk. N.L. Goodrich argues that the temple was used by Arthur and was the original of the Round Table. Interestingly, a suburb of Falkirk is called Camelon.