Outer Wilds.

Really encapsulates the meaning of beauty a couple different ways.

Tetris Effect, particularly if you can play in VR.

Though if you're strictly talking "aesthetically pleasing", the options get wider. I absolutely loved the aesthetics of Hi-fi Rush. The absolute beauty of this comic-esque, cel-shaded world with every element, background and forground, moving to the rhythm of the soundtrack just blew me away when I started playing. But I'm a slut for rhythm games, so there's just something about everything tiny fiber of the space connecting and syncing up that gets me.