Nikhil Chopra: Artist highlights Manchester's heritage
8 July 2013 Last updated at 19:41 BST
An artist from India has spent three days and nights creating a piece of art at the Whitworth Art Gallery in Manchester.
Nikhil Chopra's performance, Coal on Cotton, saw the gallery open continuously from dawn at 04:48 GMT on Friday 5 July to sunset at 21:37 BST on Sunday 7 July.
During that time he used the two materials to illustrate the city's mercantile past as part of the Manchester International Festival.