Tour de Pirelonge

The Tour de Pirelonge is a Gallo-Roman stone tower, also referred to as a funerary pile, situated to the east of Saujon in the commune of Saint-Romain-de-Benet (Charente-Maritime, France). This monument, likely constructed during the Roman Empire along the ancient road connecting Saintes to Bordeaux, is a cenotaph in the form of a solid column, standing 24 meters high with a square base and a conical cap. The structure has been relatively well-preserved and has been designated as a historical monument since the initial list was published in 1840.

Building data from Wikidata (CC0); heights normalised. Summary from Wikipedia (CC BY-SA).