Sound and image are primarily what makes up a film. Sound is a crucial element to the filmmaking process but without any sound, a film cannot only still work but still be dazzling. It allows the filmmaker to be purely visual and tell their story in those terms.
This is what filmmakers had to deal with until Al Johnson shook things up in 1927. Now, over 90 years later, some films can work in this retrospective. They can still convey a story with pure emotion even with the sound completely off.
On this list are no films from the silent era as it would be a bit of a cheat. And it's not saying these films are better with the sound off but films that can completely work without it whether being physical comedy, a action thriller or pure drama. Martin Scorsese said it best when he stated "sometimes I turn off the sound just to admire the pictures".