Er zijn nog geen Nederlandstalige annotaties. Hier volgen annotaties in het Engels.
Roman triumphal monument or circular burial.
The diameter of the building is 64 meters with the plan consisting of four concentric rings.
The building was submerged by the Rhine river and today only the drawings, collected by Stehlin in 1910, remain.
file:///C:/Users/Utente/Downloads/jak-001_2015_36__256_d.pdf pag.121.