Major cultural centres in the city include the Fine Arts Circle (one of Madrid's oldest arts centres and one of the most important private cultural centres in Europe, hosting exhibitions, shows, film screenings, conferences and workshops), the Conde Duque cultural centre or the Matadero Madrid, a cultural complex (formerly an abattoir) located by the river Manzanares. The Matadero, created in 2006 with the aim of "promoting research, production, learning, and diffusion of creative works and contemporary thought in all their manifestations", is considered the third most valued cultural institution in Madrid among art professionals.