Orreos line the seafront of Combarro near Pontevedra. Orreos (or horreos) are graneries, unique to Galicia. Built on stone pillars the flat stones are designed to keep rats and other vermin from getting at the grain. Orreos are ubiquitous in Galicia, each house having their own. Now they are an icon and many houses have a decorative orreo in the yard, sometimes even miniature garden versions of no practical use.