LEGO Clue - Mrs. White In The Kitchen With The Lead Pipe
This is a brilliantly simply idea that's very well executed. Max Pointer has built a series of vignettes out of LEGO that illustrate some classic murder scenarios from Clue (or Cluedo if you're in the UK).
What makes them so good though is the amount of detail packed into a tiny build. Look at the contents of the Kitchen for example.
Then go and check out all the other ones.