A "singing tree" is one of three new landmarks chosen to stand on the hilltops above Lancashire.
The Singing Ringing Tree will sound in Burnley
The four-year Panopticons project will see six 21st century landmarks built on high points across the county.
The three chosen designs for Burnley, Hyndburn and the Ribble Valley were announced on Monday.
They include a musical sculpture activated by the wind, man-made hills to create a community space and a hill-top viewing wall.
The Singing Ringing Tree is the winning design for Burnley and incorporates pipes which sound with the wind.
A New Landscape On The Hill is a hilly "public space" created in Hyndburn, and neoSCOPE is the viewing wall to be constructed in the Ribble Valley.
A hilly community space is planned for Hyndburn
Residents are being asked to help shape the final designs.
Work is due to begin on the first three landmarks - the 25m Halo, dubbed "the flying saucer" in Rossendale, Colourfields for Blackburn and the Atom for Pendle.
Panopticon means a structure which creates a panoramic view, setting down the aim of the project on some of the county's highest points.
Mid Pennine Arts is co-ordinating the Panopticons and the first three designs were created as part of a competition with the Royal Institute of British Architects.
The structures - which are all shelters, viewing platforms or beacons - will be built by 2007.