landmark was a derrick or crane for moving wine shipments from the Tiber for land transport; however, this usage appears to be found only in the dialect of Roman Spain, and means "shadoof," an irrigation apparatus. Regardless of why the location was known as the Ciconiae — a representation of storks remains as good a guess as any — an inscription twice mentions that taxes were paid there pertaining to shipments of wine. Since the stork was a symbol of pietas, it has also been conjectured that the Ciconiae were associated with an altar to Pietas that the emperor Hadrian had dedicated when his wife Sabina was made divine. The Nixae The annual sacrifice of the October Horse was held ad Nixas, within the Tarentum in the general area of the Campus Martius. The site is most likely an altar to the birth deities known as the Nixae or di nixi. References Topography of the ancient city of Rome Campus Martius