Felipe also designed El Escorial to serve as the burial chamber for the royal family, who previously were buried all around Spain in whatever cathedral caught their fancy. Almost all the kings and queens are buried in the green marble pantheon with the chandelier pictured here. He established an elaborate pecking order for the graves. Queens who married into the family (rather than being born into it) and who weren't mothers of future kings got separated from their husbands and were buried in the pictured room with the row of white marble coffins. There's also a huge birthday cake in the middle of one room (pictured) to house all the princes and princesses who died as babies, which is now a bit more than half full. And there are many more rooms for assorted royal relatives depending on their degrees of closeness to the throne.