Red-clad figures performed amazing aerial feats on some of London's landmarks yesterday. Choreographer Elizabeth Streb and team put on Surprises: STREB as part of the London 2012 Festival, the culmination of the Cultural Olympiad. If you weren't lucky enough to catch it in action (each location was only revealed a short time in advance; we suppose this was the 'surprises' bit), our intrepid Flickrpool photographers did the running around for you.