Belonging to the Milky Way, his nucleus urban is divided in two parts, one to the east, in the margin right of the Rio Iranzu, between monumental parochial church of La Asunción and the damaged one chapel of San Román and other locates in the left margin of his river, in the lowest part.
Both nuclei are separated by the most beautiful medieval bridge. Header to emphasize the monumental parish and already, out of the downtown, her Chapel of San Miguel.