The first thing that comes to mind is the northern area in Final Fantasy 7. I am pretty sure that it doesn't look terribly impressive by today's standards, but I really liked the experience of walking through it. The story of the game was about to head to a major turning point at the same time which probably added to the experience.
curl-6 bet me that PS5 + X|S sales would reach 56m before year end 2023 and he was right.
My Bet With curl-6
My Threads:
Master Thread, Game of the Year/Decade
Switch Will Be #1 All Time
Zelda Will Outsell Mario (Achieved)
How Much Will MH Rise sell?
My Bet With Metallox