Door number 8 of our Advent calendar reveals a Tube that is unlikely to look as peaceful as here at this time of year …. Should your commute not be your favourite part of the day (highly likely if you live in London), take a look at Simon Hadleigh-Sparks’s London Underground calendar where he captures retro wall tiles as well as futuristic escalators, reminding us that the Tube can be uniquely beautiful – when empty.