What are the best practices for creating a big world?

Not really. Mostly wide open with grass, sand, and paths/roads. Maybe a few buildings scattered around. They’ll be towns along the pathway, but I already planned on making the towns as their own levels… assuming that’s good practice? I just don’t want it to lag a lot and I would think if a big area has to load entirely, it would lag, right? Is there a way to make pieces of a level load only when the player gets in view of it?