It was designed by the architect Sir Norman Foster and by the Spanish civil engineers Julio Martínez Calzón and Manuel Julià Vilardell.

It features a pod for floor space like many towers but uses guy wires for lateral support like a mast.

Mainly used as a TV and radio transmitter, this futuristic design provides the highest viewpoint over the city.

The tower has a space for event organisations, consisting of a reception room and an observation deck set 560 metres above sea level.

The tower has a hollow slip-formed, reinforced concrete main shaft of only 4.5 m diameter, which reduces to a mere 3 m to hold a radio mast which telescopes from 2.7 m to 0.7 m. The thirteen floors are surrounded by a perimeter of open stainless steel grilles and suspended from the shaft by three primary vertical steel trusses.