What is the best CC free custom world that you have ever played?

I can suggest a few that you might like. These are all populated, rather than having a save file.

Legacy Island II and Legacy Island III by @Rflong7
- myworlds-rflong7.blogspot.com/2014/05/legacy-island-3.html#more
- https://thesims3.com/assetDetail.html?assetId=6696111
- https://thesims3.com/assetDetail.html?assetId=8219962

Mountain Lake by @Rflong7 (so pretty and probably my favourite player-created world)
- myworlds-rflong7.blogspot.com/2012/08/mountain-lake.html#more
- https://thesims3.com/assetDetail.html?assetId=6187877
I use this screenshot of Mountain Lake as wallpaper on my PC.
(Please note that the moon isn't actually that enormous. I was using a lighting mod at the time)
https://i.postimg.cc/R0WGZd22/Mountain-Lake.jpg

Verdonia by @whitepawn23 (similar feel to Moonlight Falls)
- https://forums.thesims.com/en_us/discussion/835619/verdonia-release-7-20-16

Gold Coast by @MerryWiddow
- https://merrywiddow.wordpress.com/2013/02/15/gold-coast-complete/
- https://thesims3.com/assetDetail.html?assetId=6996864