CaixaForum is housed in the former Casarramona textile factory designed by Puig I Cadafalch in 1911. The Casarramona factory incorporated novel social ideas: it was clean and well ventilated and flooded with natural light; it had an automatic fire extinction system and no chimneys as it relied on electric power. This building was renovated to be an art gallery and social and cultural foundation sponsored by Caixa Bank. The striking canopy sheltering the main entrance was designed by Japanese architect Arata Isozaki.
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