Avinguda Diagonal in the context of Avinguda Meridiana, Barcelona

L'Auditori (Catalan pronunciation: [ləwðiˈtɔɾi]) is a modern building of 42,000 square metres designed by the architect Rafael Moneo, opened on 22 March 1999, in Barcelona, Catalonia, Spain. It is in the centre of the new pole of urban development of Plaça de les Glòries, which brings together the three widest and longest avenues in the city (Diagonal, Gran Via and Meridiana) near the old centre of the city, its ‘Avenue’, next to the National Theatre, Glòries junction, the opening of the Diagonal on to the sea, district 22@ and the Forum area.

The building combines sober external modernity with Sala 1 Pau Casals with 2,200 seats, Sala 2 Oriol Martorell with 600 seats and Sala 3 Tete Montoliu with 400 seats. In the central access atrium, a monumental cubic glass light has been built in the shape of an impluvium, decorated with sketched paintings by Pablo Palazuelo. The acoustics of the halls has been carefully studied within the project by the specialised engineer Higini Arau.

The Forum Building (Catalan: Edifici Fòrum, IPA: [əðiˈfisi ˈfɔɾum]; Spanish: Edificio Fórum), is an architectural landmark in Barcelona designed by the Swiss architects Jacques Herzog and Pierre de Meuron (Herzog & de Meuron).

The building is triangular in shape, measuring 180 metres on each side and 25 metres in height, located within the triangle formed by Diagonal Avenue, Rambla de Prim and the Ronda Litoral.

Plaça de les Glòries Catalanes (Catalan pronunciation: [ˈplasə ðə ləz ˈɣlɔɾiəs kətəˈlanəs]), (Spanish: Plaza de las Glorias Catalanas; both meaning "Catalan Glories Square") most often shortened to Glòries, is a large square in Barcelona, first designed by Ildefons Cerdà to serve as the city centre in his original urban plan (Pla Cerdà), but nowadays relegated to quite a secondary position. It is located in the Sant Martí district, bordering Eixample, at the junction of three of the city's most important thoroughfares: Avinguda Diagonal, Avinguda Meridiana and Gran Via de les Corts Catalanes.

For decades, its main purpose was to function as a roundabout of elevated highways. However, in the early 2000s, a revamping project for Glòries started, which aimed to give the square a new role in Barcelona and revitalize the northern districts of the city, under the name 22@. These plans supplement other large-scale plans in Sagrera and the Fòrum area. The first installment of this project was the construction of the Torre Agbar skyscraper.

41°25′18.99″N 2°11′12.65″E / 41.4219417°N 2.1868472°E / 41.4219417; 2.1868472

Avinguda Meridiana (Catalan pronunciation: [əβiŋˈɡuðə məɾiðiˈanə]) is a major avenue in Barcelona, Catalonia, Spain, spanning parts of the Sant Andreu, Nou Barris and Sant Martí northern districts of the city. Originally planned by Ildefons Cerdà in 1859 to be one of the two most important thoroughfares in Barcelona, its actual role has not been exactly so but still has become a much transited route linking Parc de la Ciutadella with northern parts of Barcelona, crossing Plaça de les Glòries in its way, where it meets other two major avenues: Gran Via de les Corts Catalanes and Avinguda Diagonal. It absorbs the traffic coming from the AP-7 motorway, which makes it a densely transited area. The avenue goes through the following neighbourhoods of Barcelona: El Clot, Navas, La Sagrera, Sant Andreu de Palomar, El Congrés i els Indians, Vilapicina, Porta, La Prosperitat, La Trinitat Nova, Trinitat Vella and Vallbona, largely working-class areas of the city.