Torre Diagonal 00

The Torre Diagonal 00 is one of Barcelona's most iconic skyscrapers and is located in the Barcelona 22@ technology and innovation district.

The building is the corporate headquarters of the Telefónica Group in Catalonia. The Torre Diagonal 00 houses all the telephone company's offices which were once in different locations around the city. Research and development is one of its main activities, and it specialises in studying multimedia applications and internet services.

The Diagonal 00 building was designed by the architect Enric Massip-Bosch. This unique white tower, standing 110 metres high and with 24 storeys, has a slender, lightweight structure.

Its architecture is an example of sustainable technology. Its triangular prism-shaped base made of steel and glass harnesses the sunlight and lets light flood in.

There's a curious fact about the building. It was originally called Diagonal 00 because it stands at number 00 at the eastern end of the Avinguda Diagonal. It recently came under new ownership and has been renamed Torre Diagonal One.

This skyscraper is often compared to the Flatiron building in New York. We invite you to visit it on this trail combining tourism and technology.