If you want a real blast from the past, the old gold box TSR videogames (which have remasters available on modern hardware) tend to take place around the Moonsea area, with Hillsfar and Philan.
I saw this "remembered realms" map about half a year ago, and managed to determine that I have 8 DnD characters for 5e, in various on-and-off campaigns. Currently NONE of them are in the coloured area.
It's sort of Tiamat-stuck-to-the-head-of-a-very-large-angry-lady.