de l'Espace was founded, etc. To deal with growth, major housing and transportation projects were launched. Line A of the underground was opened in 1993, and line B opened in 2007. The creation of a system of underground car parking structures in Toulouse city centre was sharply criticised by the Green Party. In 2000, Dominique Baudis was at the zenith of his popularity, with approval rates of 85%. He announced that he would not run for a fourth (6-year) term in 2001. He explained that with 3 terms he was already the longest-serving mayor of Toulouse since the French Revolution; he felt that change would be good for the city, and that the number of terms should be limited. He endorsed Philippe Douste-Blazy, then UDF mayor of Lourdes as his successor. Baudis has since been appointed president of the CSA (Conseil supérieur de l'audiovisuel) in Paris, the French equivalent of the American FCC. Philippe Douste-Blazy narrowly won in the 2001 elections, which saw the left making its best showing in decades. Douste-Blazy had to deal with a reinvigorated political opposition, as well as with the dramatic explosion of the AZF plant in late 2001. In March 2004, he entered the national government, and left Toulouse in the hands of his second-in-command Jean-Luc Moudenc, elected mayor by the municipal council. In March 2008, Moudenc was defeated by the Socialist Party's candidate Pierre Cohen. At the next elections in 2014 Moudenc defeated Cohen in a rematch to re-take the job with more than 52% of the votes, and he was re-elected with almost the same score in 2020. Mayors Sights and architecture Classified "City of Art and History", Toulouse has a very rich architectural heritage ranging from large Romanesque and Gothic churches to neo-classical facades such as that of the Capitole, to the prestigious mansions of the Renaissance. This ancient heritage is mainly enclosed within the 220 hectares of the city's inner boulevard (one of the largest protected urban areas in France). Almost all the buildings of the historical centre were made with the traditional building material of the region: the "foraine" brick that has earned the city the nickname of Ville rose (Pink city). Medieval heir to the Roman brick, the "foraine" brick is characterised by its large dimensions, its flat appearance and its colour ranging from orange/pink to red. White stone is also present in smaller quantities. As there were