Just in front of the Diagonal Mar Shopping Centre, in the northernmost part of Barcelona, is the so-called Parc del Fòrum, a legacy from the 2004 Universal Forum of Cultures.

The Parc del Fòrum consists of two large buildings, the auditorium and the Barcelona International Convention Centre, in an immense plaza measuring 16 hectares, the second largest in the world. Far more than a park or green area, it is a spacious venue comprising a set of areas and installations where all types of acts and leisure and tourism events are organised (La Mercè, la Feria de Abril, Primavera Sound, concerts…).

More information here