I have recently been walking along London Underground lines, taking a picture of each station. Below are a few of the pictures I took during these walks.

Northern Line edit

Charing Cross and High Barnet branch edit

Walked the Northern line, Charing Cross and High Barnet branch, from Morden via Charing Cross to High Barnet, equating to 43.15 kilometres (26.81 mi) in about 10 hours (according to my watch).

Circle Line edit

Walked the Circle line from Hammersmith (H&C) to Edgware Road via Aldgate, totalling 40.8 kilometres (25.4 mi) in 8:45 hrs (according to my phone).