Daniel Buren is proposing for the Ebbsfleet Landmark what he calls a 'signal', a tower of five stacked open 'cabins' constructed from white concrete, through which passes a single laser beam of light. The empty spaces of the cabins would be projected onto the floor - with the exact same measurements - in four directions across the ground, like reflections, each containing sculpted stairs to allow visitors to climb to the heart of the work, which Buren refers to as the 'treasure'.

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