The 30-floor circular, glass Torre Europa centre is situated at the heart of Madrid's business district, in the AZCA commercial area. The building, one of five towers, is a striking example of modern architecture. Property and finance dominate the business landscape. Torre Europa enjoys direct access to Paseo de la Castellana, and features secure, on-site parking. Madrid is the third largest capital in Europe and, has the fourth largest GDP on the continent and is considered the major financial centre of Southern Europe. The city hosts the head offices of the vast majority of the major Spanish companies. The city is a major centre for international business and commerce, experiencing recent rapid growth in the service sector.