02/06/2011 by Buildington
Andrew Marr has climbed one of the cranes building the Shard skyscraper in London to meet its operator, who said he "never tired of the view".
When finished the Shard will tower 1,016ft (309.67m) above London. As floors are constructed, the crane also has to keep growing taller than the building for work to continue.
Operator John Young said he often worked "blind", as he could not see the steel he was moving hundreds of feet below.
Watch the BBC video: http://www.bbc.co.uk/news/uk-13621008