Foncalada, Oviedo (Asturias) - Spain.
Built by king Alfonso III of Asturias in the 9th century, this building remains the only surviving civil architectural item for public use of the Early Middle Ages. Its name was given after the inscription in Latin: fontem calatam written on it. Built in Pre-Romanesque style, it is included in the UNESCO World Heritage Site list since 1998.
Its mains scription shows : “This sign protects the fair. This sign defeats the enemy. God, put this sign of salvation on this fountain and dont let kicker angel to get close.”
Some authors believe that it was constructed over a roman fountain, used as balneary, because its water was considered related to Christ, with curative and sacred symbolism.
The decoration on top depicts the Victory Cross, symbol of Asturias. More info: https://en.wikipedia.org/wiki/La_Foncalada