On top of the dome

This was taken from a cable car gondola as it rose up from the London Docklands terminus, so I had a fleeting moment to catch a shot of the people on top of the O2 silhouetted against the sunset sky (people can walk over the O2 on a specially constructed walkway that curves over the entire dome).

It's been a beautiful day in London: 23 degrees (the warmest Halloween on record, reportedly), but as I was indoors for much of the day - second day of the COMIT conference at the Crystal - I didn't really get to enjoy it much.