Great Ormond Street Hospital has become home to a secret Lullaby Factory for children. The  installation, designed by Hackney-based architects Studio Weave,  has transformed an unused and somewhat awkward interior space into a symphony of gold, bronze  and silver listening pipes.

Commissioned to fill the enclosed space between old and new buildings while the hospital  undergoes an expansive multi-phased redevelopment, Studio Weave chose not to cover up the  messy pipes and drainage systems already adorning the space, but, instead, to add to them, with a  wide-spanning framework of pipes and horns. The fantasy landscape, reminiscent of Roald Dahl’s  Big Friendly Giant dream-catching scenes, has been designed to engage the imagination of everyone  who sees it – staff, patients and parents alike.

Sound artist Jessica Curry composed the lullabies, which can be listened to from a number of the  pipes, but it’s also transmitted by a radio frequency, meaning patients on the wards can tune in too.  Using taps and gauges salvaged from a decommissioned hospital boiler house, the whole installation  reaches 10 storeys in height and 32 metres in length, and the intricacies and highly-crafted beauty of  the piece are a sight to behold.