Plaça de Catalunya is considered the centre of Barcelona and is where the old centre meets the new. It is the starting point for Passeig de Gràcia, Rambla de Catalunya, La Rambla and Portal de l’Àngel, streets always crowded with residents and visitors. There are shops, cafés, bars and banks in the square, which is also a centre of urban transport.
More information:
Plaça Catalunya fact file
http://en.wikipedia.org/wiki/Pla%C3%A7a_de_Catalunya,_Barcelona
Other videos:
Video: © Barcelona Citylivetv
Source: http://www.youtube.com/watch?v=l4gW_bDT0ws