The picture on the right is of Rachel Whiteread's Embankment, the latest art installation to occupy Tate Modern's Turbine Hall.
Whiteread has created a labyrinth-like structure, made from 14,000 casts of the inside of different boxes, stacked to occupy Turbine Hall's huge space. Since the gallery opened in 2000, six artists have risen to the challenge of filling the 155 m x 35 m (500 ft x 115 ft) space.
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