Tower of London, Raven. Eight ravens are kept at the Tower of London. Their wings are clipped so they can't fly away. Legend has it that failing to have Ravens reside at the Tower will cause it to crumble and a terrible disaster shall befall England.
The Balfron Tower / Pic: Simon Terrill. The brutalist tower designed by Erno Goldfinger has been used for a series of different artistic endeavors lately, including an overnight production of Macbeth. Go at sunset for unusual views over south east London.