Rules: only places that don’t exist, so no “NY from Spider-Man” also if you can limit to a building or little town, not an entire city or map.
My pick: The Spencer Mansion from 1996 Resident evil. I always loved that place. Of course without the creatures.
Stardew Valley
Their country is at war though and it’s not clear how much it affects people outside the valley.
But they’d be inside the valley.
Wait until the enemy hears about this billionaire living there…