This was taken near the Aldgate East tube station. It's an old abandoned building occupied by two homeless ladies. One of them was kind enough – after some financial incentive – to pose by the windows for the picture. I saw them again, 10 minutes later, buying alcohol in a store with the money I'd given them. Shame.
Taken at 8mm, F/3.1, exposure time 3 seconds and ISO-80. Slight contrast adjustment in Photoshop.