Colombia's 18 million LED lights display switched on
4 December 2012 Last updated at 19:14 GMT
Nearly 18 million LED lamps have been switched on in Medellin in Colombia at the start of the city's Christmas celebrations.
The 'Nature, Light and Life' display, said to have cost $6.6m, showcases the natural wealth of the country's north-west Antioquia province.
Jaime Gonzalez reports.