As we read in the page " [...] It is the lowest floor because it is the highest and at the top we can find an attic. The attic has a double function, one of them would be to compensate the height between the noble floor of this building and the floor above it, making the attic to be equal in height. Another simple function of this attic is to hide the roof from the Plaza Mayor, also in the center of this attic we find a top with a shield and at the top as a comb we can find a Lion."
(
visit link)