London calling

I had a work trip to London planned.
It however involved travelling by train - which is a convenient 4.5 hours station to station.
However, this meant I had 3 days/ 2 night in London.
Previously I've done this trip by flight, but this appears to be discouraged due to the carbon footprint.

So, I got to london at about 6pm - having been sat for that many hours I decided upon a walk. No real goal in mind, but was loosely heading for the Houses of Parliament.
London was well represended in the Christmas lights  I can assure you of that!