Architecture of Madrid of Music is a work of 1988. In the 21st century, Madrid faces new challenges in its architecture. An old industrial warehouse is the Interpretation Centre of New Technologies, and the CaixaForum Madrid (Herzog & de Meuron) was a former power station. Under the government of Alberto Ruiz-Gallardón the four tallest skyscrapers in Spain were built, and together form the Cuatro Torres Business Area (CTBA). The Manzanares River is crossed by new edge bridges, and work started on the International Convention Centre (Mansilla+Tuñón), an original round building, whose works remain paralyzed by the crisis. Caja Mágica (Dominique Perrault) sport centre
Ciudad Deportiva, Madrid against. The agreement between Real Madrid and the local government stipulated that in exchange for re-zoning the land Real Madrid would cede a portion of the land to the Government. Then, in public project bids, both Real Madrid and the Government sold their portions to four corporations, Repsol YPF, Mutua Automovilística de Madrid, Sacyr Vallehermoso and Obrascón Huarte Lain (OHL), for which Real Madrid earned an estimated 480 million euros. These four corporations are, as of August 2006, constructing four skyscrapers on the site which will become their headquarters as part of the Cuatro Torres Business Area. The government also