Reina Sofia museum is always a good idea. And it's never enough of Picasso's Guernica as well as the other modern art gems. Save some hours for visiting and then look round the corner and have some wine at NuBel.
After long hours at Reina Sofia museum time for going to Outer Space. It's called NuBel and it makes you wonderfully dizzy. Or, better, go there just before the museum - drink some wine and go to admire Guernica in 3D.
Edificio residencial del arquitecto Sainz de Oiza racionalista y moderno con el portal al más puro estilo italiano. He vivido en el y es el claro ejemplo de arquitectura bien hecha dejo la fachada sin que la veáis para que os paséis y disfrutéis del orden