CaixaForum Madrid

CaixaForum Madrid is a museum and cultural center in Paseo del Prado 36, Madrid. It is sponsored by Caixa Bank. 
It was designed by the Swiss architects Herzog & de Meuron and built by Ferrovial between 2001 and 2007. It was an old power station called Central Del Mediodía, from the 1900s. The "Vertical Garden" at the square is also well-known.