150 great things about the Underground | An unofficial birthday salute to a public transport titan - http://150greatthingsabouttheunderground.com/
For anyone with a passing interest in London, this blog is a must-read, but it's pretty much one of the best blogs out there, full stop. It's contemplative, poetic, thoughtful, considered, and beautifully written. It's done with passion for its subject, and is full of charming and unexpected insight into something which so many people use, yet so few truly understand. - Iain Baker