2308723a

Mandatory Credit: Photo by ANL/REX (2308723a) Big Ben Lit Up During Experiments In Preparation For The International Illumination Congress To Be Held In London Where Londoners Will See The Main Buildings Illuminated By Floodlights. Big Ben Lit Up During Experiments In Preparation For The International Illumination Congress To Be Held In London Where Londoners Will See The Main Buildings Illuminated By Floodlights.