Stopped by the Imperial War Museum in London today. Was really impressed. Never thought I'd see a T-34 tank up close. 

If you are ever in London and you come across a holocaust denier, send them to the IWM. The fourth floor is dedicated to a timeline of the holocaust and includes a model of Auschwitz, clothing of both Nazi Nazi Death's heads units and Jewish prisoners of camps and pretty much anything you could think of when it comes to the Nazi regime and the holocaust.