Ha! I created a WCIF at GOS a couple of weeks ago asking about remakes of the terrains and lots from the Egypt and France worlds from TS3, but I didn't have much luck - great minds think alike? :P
The ones I know about are these:
the terrain (empty) of Shang Simla (China) from WA TS3 by Freezerbunny:
https://freezerbunny-sims.tumblr.co...this-terrain-so
the terrain (empty) of Aurora Skies from the TS3 store by Voleste:
http://3t2database.tumblr.com/post/...ies-terrain-for
the terrain (decorated) of Roaring Heights from the TS3 store by Penig:
http://penig.tumblr.com/post/154894...s-and-thank-you
a Magic Town hood&subhood from TS1 by Voleste:
https://voleste.dreamwidth.org/10056.html
ofc none are exact replicas due to the restrictions in the curvature of roads and such things, but I think most are pretty neat and I'd love to see more of this type of "conversions", either the terrains alone, the decorated hoods with remake of the Sims, and the lots - especially from the pretty albeit small TS4 worlds.
Oh and here are some lots remakes that I remembered off the top of my head:
mostly TS3 remakes:
http://yandereplumsim.tumblr.com/tagged/cc%3B-lot
https://zeussims.livejournal.com/tag/lots
TS3 and Castaway:
http://alexbgd.tumblr.com/tagged/sims+2+download/page/5
mboticelli remade a lot of Sims 1 lots, but they deleted their blog. You can still some of them by browsing here:
http://sssvitlans.tumblr.com/tagged/ts1%20to%20ts2