Any time I visit London, I usually end up walking through Trafalgar Square. Coming from Embankment tube station or from Leicester square, it's quite well positioned as a focal point of the city centre and nice to visit day or night :-)
This week we took a short trip to London where my wife Jenn was giving the opening keynote for the {develop:BBC} internal BBC developers conference at the BBC Radio Theatre in BBC HQ. I got to tag along backstage and also take in some great talks, including some agile wisdom from Kevlin Henney and the environmental burden caused by cloud data centers by Anne Currie (the key takeaway of which was to use Google Cloud, Azure or AWS Dublin and AWS US West, which are climate offset). You can see some photos I took of the morning sessions here.