Presentation about the Cathedral in a guided tour

We are in front of one of the most important monument in the city: the Cathedral . It was the first romanesque cathedral in Spain.

It is dedicated to Saint Peter.

It was begun on the orders of Ramiro I. However the work started in 1076 during the reign of his son Sancho Ramírez.
Here, (there was) near the Lonja Chica  was the market in the Middle Ages, among other things people come here to buy textiles. The salesmen took the measure on that column, we can see the measure there. Can you see it? It is the mark on the right column.

Now look at the decoration,

what does it remind you of?