The walls, the ramparts, the gardens, the labyrinths, the staircases, the terraces, the parapets, the doors, the galleries, the circular or rectangular patios, the cloisters, the intersections, the cisterns, the anterooms, the chambers, the alcoves, the libraries, the attics, the dungeons, the sealed cells and the vaults, are not less in quantity than the grains of sand in the Ganges, but their number has a limit.

Jorge Luis Borges