Monty Python and the Holy Grail is a timeless classic

I think the value of the movie comes from the fact that they have managed to make almost every single scene memorable. I can name "Your mother was a hamster and your father smelt of elderberries!", the Knights Who Say "Ni!", the Killer Rabbit of Caerbannog (which is even in Minecraft), and "What is the airspeed velocity of an unladen swallow?" off the top of my head, and that is not even close to the entire movie.