Basilica de la Sagrada Familia, Barcelona.

An astonishing awe-inspiring insanely brilliant building. Everywhere here there's mathematics intersecting with art (many of the curved surfaces are paraboloids or hyperboloids... Gaudi had not only to design this, but also to find a way to articulate the design into construction plans that an army of masons and brickies could follow).

It's days like today when Blipfoto doesn't really work. I mean, only one photo to sum up all of this? So much more to show.