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.
Well, not my first pick for fictional places to go, but Mystic Ruins. Specifically Tails’, workshop in hopes to meet him. I personally think his AoSTH and SatAM versions are the best, but would absolutely love to meet him regardless.