It was constructed by the Swiss architects Herzog & de Meuron from 2001 to 2007, which combined an old abandoned electrical station with new construction of floors which are encased with oxidized cast-iron, which was meant to be of a similar color and weight as the brick below. Next to it is an art installation of green plants growing on the wall of the neighbouring house by French botanist Patrick Blanc. The red of the top floors with the green of the wall next to it form a contrast. The green is in reflection of the neighbouring Royal Botanical Gardens.
Although the CaixaForum is a contemporary building, it also exhibits retrospectives of artists from earlier time periods and has evolved into one of the most visited museums in Madrid.
See also 
|Wikimedia Commons has media related to: CaixaForum Madrid|
- CaixaForum Madrid, official website of the Caixa Foundation (in Spanish)
- Images and plans on Arcspace
- Interview with Jacques Herzog about the design of the CaixcaForum, on studiobanana.tv