Only yesterday I stumbled across an amazing article in an old copy of Pilot magazine (Dec 2002). It told the story of how nine aircraft were flown in line abreast formation through nine separate spans of a long bridge crossing a wide river in China. Were it not for the accompanying photographs, I doubt I could have believed it - in fact I'm still not sure that I do!
The pilots were a mix of aerobatic champions, and ex-mil fast jet, from France, Russia, UK and USA.