Twelve artists were commissioned as part of TSWA 3D to create new work for sites across Britain and Northern Ireland. Antony Gormley's SCULPTURE FOR DERRY WALLS (1987), a three-part sculpture, was installed in three particular locations on the Derry Walls: on the east overlooking the Foyle River, over the Bogside by the remains of the Walker Monument, and on the Bastion overlooking the Fountain Estate.