Do you know of a film or TV show (preferably animated) that was done is such a way that one might consider it to be art?

My best example is Samurai Jack. The show often has slow pacing but in a good way. It let's you focus on the sound ambience, hand drawn back grounds, and very stylish art direction. Usually, all of this helps build up the mystery and leads to some sort of big reveal or battle.
Do you know of a film or TV show (preferably animated) that was done is such a way that one might consider it to be art?
Do you know of a film or TV show (preferably animated) that was done is such a way that one might consider it to be art?
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