I just got reminded about one of the funniest bits of lore from the Assassin's Creed games. Canonically, they confirm the real world conspiracy theory that the dead guy in Hitler's bunker at the end of WWII isn't Hitler, but actually his body double to be true in the game world. However, after killing his double, Hitler walks out of the bunker to escape and is immediately killed by an Assassin. Like he gets about 200 feet into his plan to fake his death and escape capture before getting stabbed in the neck and dying.
The early games loved conspiracy theories so much that you expect them to play this straight and have Hitler get away, but no. He tries. He dies.
In 1938, the Doctor (Doctor 11), Amy, Rory, and River Song went to Nazi Germany where River Song first tried to kill Hitler and then came close to killing the Doctor. They also met the Teselecta ("Let’s Kill Hitler", Doctor Who, vlm 3 TV)
So I was reading about early medieval lyres and learned that there was one perfectly preserved lyre found in Germany which they managed to preserve in alcohol in Berlin. I got super hyped about it, hoping to see a picture or which museum collection holds it.
Turns out the lyre was destroyed in the Second World War when Russian soldiers DRANK the alcohol.