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
Madrid In addition, mushrooms often emerge after the first rains of autumn. Finally, the river groves, or riparian forests, are made up of various, mainly deciduous, species that grow in wetter areas. Examples include poplars, willows and alder trees. As regards fauna, this green space is home to approximately 133 vertebrate species. The Royal Botanical Garden of Madrid ("Real Jardín Botánico de Madrid") is an 8-hectare botanical garden located in the Plaza de Murillo, next to the Prado Museum. It was an 18th-century creation by Carlos III and it was used as a base for the plant species being collected across