What largest explorable towns/cities from videogames do you remember?

Looking for the Foursides, Goldenrods, whatever village or town or city you remembered from video games and that can be thoroughly explored and that are considered "big"

Kinda funny but I remember how vast Minniopolis seemed in The Urbz Sims in the City for GBA and DS and I saw a map this year that looked so tiny, amazing how big it felt at the time