Babel 2001 (detail)
Brazilian artist Cildo Meireles has an exhibition of his thought-provoking conceptual art and installations at Tate Modern until 11 January 2009. I took some restless teenagers to see the show during half term and we all loved it. There is an entrance fee for over 12s and adults of £8.
"My work aspires to a condition of density, great simplicity, directness, openness of language and interaction."