Pretty simple, what you think are great movie scenes. Try to put the movie title first so people can tell if it's a movie they've seen or not.
Lawrence of Arabia,
The scene at the well. Maybe it's cause I watched it on a big screen, but this scene was really chilling. Lawrence of Arabia was known for its cinematography and there's a lot of it here. You also can see how mythologies like people walking on water came about as the figure appears to merely glide over the bright blue.
Dr. Strangelove,
One of my favorite movies ever with my favorite ending ever. Movie is just chockfull of hilarious stuff literally right up to the end. The way Strangelove elaborates on his master plan gets me every time, but the pinnacle of the movie is its nearly instant combination of hilarity and morbidity.
There Will Be Blood,
Two scenes, actually. The first when Eli humiliates Daniel in the church. The second is when Daniel returns the favor. Damn good movie.