aerial photograph of the Singing Ringing Tree Panopticon, Burnley, Lancashire, England, UK. The Singing Ringing Tree is one of 4 Panopticons which are sculptures set up on view points around East Lancashire. Designed by architects Mike Tonkin and Anna Liu of Tonkin Liu the sculpture won the the Royal Institute of British Architects (RIBA) National Award for architectural excellence in 2007.Image available for editorial use only.