What is the best movie to watch without sound?

Can’t say it’s the best but a really good one is Sir Arne’s Treasure. Its a silent film (which is a misnomer because they were always accompanied by live music back in the day). But it’s beautifully shot.

There is some very incredible work in films leading up until the introduction of recorded audio which basically threw cinematography back a good 40 years in development due to the noise they created and how actors had to be blocked to just record their dialog.