Religious Mudéjar art in Aragon is noteworthy for the profuse decoration on the outside of buildings and towers created by multiple geometric arrangements in exposed brick (interlinked mixtilinear arches, networks of rhombuses and herringbone patterned bands) and the use of multicoloured tiles. Inside, the wooden ceilings created a feeling of space, making rooms more comfortable and warmer. An especially noteworthy example of this is the enormous collar-beam (armadura de par y nudillo) ceiling of Teruel Cathedral.