The last building designed by Miralles & Benedetta Tagliabue EMBT in Barcelona, this office tower—the headquarters of the national Catalan gas company—makes an impressive mark on the city’s skyline and faces the sea.

The building is usually called ‘The Gas Tower’ but, as with most Miralles projects, it has very little to do with prototypical, corporate aesthetics, or even what one would typically conceive of as a tower. Clad in different colored glass panels, the building confounds onlookers, as there’s no discernible main axis or single perspective from which to regard its geometry.

Call it “form follows urbanism”: the building stands at the crossroads between the modern Olympic Village and the traditional maritime neighborhood of La Barceloneta.

The result is something beyond a simple ‘tower’; the architecture relates no less than a new concept of space and the last (and one of the most celebrated) of Miralles’ masterworks.