Durham Cathedral and Castle has been recognised with a top international lighting award for its outdoor floodlights.
John Reed, head of technical services at Durham Council Council, said:
"To get third prize out of 26 projects shortlisted around the globe is an outstanding achievement. Our scheme uses exterior floodlighting that it not only spectacular but also minimises the environmental footprint. It literally shows our World Heritage Sites in the best possible light."
Durham Cathedral and Castle has been given a top international lighting award.
The venues new energy efficient floodlights, which are managed by Durham County Council, were shortlisted in the top three at the prestigious Auroralia Awards, a scheme recognising sustainable lighting.
The floodlights have flexible control systems which enable the light intensity to be varied. On and off times can also be altered to respond to changing circumstances and for special events.