The Roman arch with three bays Monument · Medinaceli, Tierra de Medinaceli, Soria Image of Medinaceli, not of the place itself. Raised at the end of the first century in opus quadratum, it measures 13.20 metres long by 8.10 high and opens three bays, a central one of 1.90 metres and two lateral ones of 1.30; it is the only arch of that type preserved in Spain. Photo: Rowanwindwhistler (CC BY-SA 3.0) What to see and do in Medinaceli