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Cosmo Caixa, a science museum located in Barcelona, Catalonia, Spain.

Cosmo Caixa, a science museum located in Barcelona, Catalonia, Spain.

Cosmo Caixa, a science museum located in Barcelona, Catalonia, Spain.

Cosmo Caixa, a science museum located in Barcelona, Catalonia, Spain.

Cosmo Caixa, a science museum located in Barcelona, Catalonia, Spain.

Cosmo Caixa, a science museum located in Barcelona, Catalonia, Spain.

Cosmo Caixa, a science museum located in Barcelona, Catalonia, Spain.

Cosmo Caixa, a science museum located in Barcelona, Catalonia, Spain.

Cosmo Caixa, a science museum located in Barcelona, Catalonia, Spain.