What is really impressive is the fact that within the walls of the church were incorporated fragments of the Roman ruins nearby.

The most remarkable of these Roman stones is the marble altarpiece from the entrance to the church. It is believed to have been brought from a Roman temple.

From the Latin inscription on the altarpiece we find an interesting story. It seems it had been dedicated to Silvanus, the Roman god of woods, and it was erected by an administrator from Ulpia Traiana Sarmizegetusa, to express his gratitude for being promoted.