Berlin's Reichstag has always possessed a resonance beyond mere bricks and mortar. It was built in 1894 as a symbol of a Germany united under Bismarck, and since 1990 it has been harnessed as a symbol of reunification. Omnibus goes behind the scenes to tell the story of Sir Norman Foster's rebuilding of the Reichstag, charting the often fraught path from blueprint to completion as one of the world's greatest modernist architects took on one of the world's most historically charged buildings. Director: Frederick Baker