A London based photographer has artfully captured every station on the Northern Line on the London Underground.
From his website:
Life on the Northern Line is my life, in several senses of the words. I literally live on the Northern Line: the trains pass underneath my apartment 20 hours a day, only discernible by a faint rumble in the quiet of the early morning. The Northern Line is also my artery into the city: it connects my home to my work and to my friends. And also to the wealth of experience London has to offer. Cut off the Northern Line, and I am dead: it supplies my lifeblood, life would be lacking vitality without it.
The Northern Line encompasses 50 Underground stations, from Morden in the far south of London to Edgware and High Barnet in the north. It takes about 75 minutes to travel from one end to the other, passing through 8 payment zones. There are several crucial interchanges on the line: Kennington, which splits the Northern Line into two branches, one via Charing Cross and one via Bank; Waterloo, which intersects two other lines and is a large mainline overground station; Bank, which joins the Northern Line to the Docklands Light Railway, as well as three other underground lines; and towards the north, two large mainline stations, Euston and King’s Cross St. Pancras, which allow travel to the rest of the UK. The Northern Line is the backbone of London, lying north-south on the map, spanning 25 miles as the crow flies.