Buckingham Palace is a symbol of Britain and one of the most iconic buildings in the world. For over 300 years, Buckingham Palace has been a closed and secretive place --it is littered with scandals, infighting, and tragedies -- all seeking to bring down the British monarchy. Take a look behind the walls where Queen Victoria once abandoned it to George VI's defiance against Hitler and all the way to Queen Elizabeth II's 60+ year reign.