Les Tres Xemeneies is the popular name for the Mata thermal power station, located on the plot bounded by Avinguda del Paral·lel and the streets of Cabanes, Vilà i Vilà, and Palaudàries, in the Poble-sec neighborhood of Barcelona. Only the chimneys remain, which are listed as a cultural asset of local interest. Part of the site is occupied by a park where fragments of the machinery have been transformed into public art installations.