Via Dezeen, an interesting contemporary art center project  by Madrid architects Nieto Sobejano Arquitectos in Cordoba, Spain, with a beautiful illuminated facade.

According to Dezeen:

Hexagonal funnels stretch down from the roof to channel natural light into concentrated spaces. Meanwhile, tiny perforations bring narrow beams of light through the facade.  From the exterior, these perforations make up another pattern of hexagons that face out towards the adjacent Guadalquivir River.  At night, LED lights illuminate these shapes to present a glowing pattern across the water.

How cool would this design look brought down to the scale of an interior wall?