The Torre Agbar (The Agbar Tower), a modern office building located at the entrance of the 22@ (the technological district of Barcelona), has altered the city’s skyline since 2005. It is the work of French architect Jean Nouvel, who is inspired by the images of a geyser, the architecture of Gaudí and the mountain of Montserrat. A contemporary lighthouse that attracts the interest of locals and tourists in equal measure.
Rising from two elliptical, concrete cylinders, one inside the other, the Torre Agbar measures 142 metres high and is covered by two "skins". The innermost is an aluminium plate painted with earth tones, blues, greens and greys. The outermost is a transparent and translucent wall made up of nearly 60,000 sheets of glass. Thanks to this double façade an air chamber is created that allows the heating of the building to be delivered and provide ventilation. The glass used are pieces of a brie-soleil, a system that controls the sun's rays depending on the outside temperature.
These characteristics make the Torre Agbar an original, intelligent and sustainable building, the three principles on which Nouvel’s project is based. It is especially notable on weekend nights, when 4,500 points of LED light (the most efficient and least polluting system) illuminate the façade with colour.
Come along to the Agbar tower to see, at first-hand, the two "skins" of its façade. Some nights it can be seen illuminated from almost any point in Barcelona.