For me it’s Ghost Recon(2001). Coming from rainbow six, the outdoor areas were mind blowing. Just replayed a quick map and it was still gorgeous to me.
Silent Hill
Illusion of Gaia
Gran Turismo 4, this game aged very well, and any game with cel-shading
MDK
This game has so unique style and colours that it’s hard to find anything like it.
Halo.
Coming out of the lifeboat on the second level and seeing the ring is still magical.
Splinter Cell: Chaos Theory is nearly 20 years old and still looks great.
Viewtiful Joe and Okami.
Star control 2. The drawn alien animations hold up besides the super low resolution
GTA San Andreas
Brothers in Arms Hell’s Highway
Halo CE
Fallout 3
BLACK
Quake, the first one.
Super Mario Bros. 3 on the NES.
Original Phantasy Star for the Sega Master System.
Shit, yes. Ghost Recon looked amazing back then. I completely forgot about this game.
Chrono Trigger
Terranigma
Secret of Mana (original)
Trials of Mana (original)
Castleviania Bloodlines
Flashback (1992)
Blackthorne (1994)
Popful Mail (1995 Sega CD)
Super Mario RPG (original)
Anything with pre-rendered backgrounds ala ff7. It’s an aesthetic I enjoy.
Skyrim