Ten enormous sculptures form a circle in Victoria Tower Gardens. The work of Mexican sculpture Nuestros Silencios (Our Silences) is on display to mark the bicentenary of Mexico's independence. Each statue has a plate covering the mouth, symbolising freedom of speech and expression.
Already shown in major cities around the world the exhibition moves on to Paris after London.
Really worth a visit if you are in London. Parisians keep a watch out for it when it comes over to you.