Maybe you have heard of a granary?
The term - "Espigueiros" is a traditional stone structure that is raised above the ground by four granite pillars.
They are unique to rural Galician architecture and traditionally used in agriculture for the storing, curing and drying of corn during the long winter months. At first glance they appeared to be some sort of catacomb.
As distinguishing traits of Northern Portugal and Northern Spain landscapes, these granaries date back to XII A.C. I spent a lot of time admiring them in all of the small villages around Peneda-Gêres National Park, especially in Soajo & Lindoso.
In these areas, old farm styled houses have at least one standing tall alongside their corn fields. In some areas they are clustered together and laid out across a flat slab of graniet similar to tomb stones found at a cemetery.