On the topic of fantasy maps set in the real world here's another big project I started
Here's a map I started with a friend.
This is just references and isn't exactly a wip so much as it is a place to throw ideas at until we figure out how to stay properly organized
This started when I saw the timezone ISOT series and saw the one for UTC +05:00 and I thought it covered a great range of everything.
Orthodox Christianity, Sunni Islam, with minorities of Hinduism, Sikhism, Shia Islam, and assorted Christianities. Culturally this world starts off ranging from the Indus through Central Asia to Central Russia, and linguistically this world has Russian, Urdu, and the assorted central asian languages.
When I first saw that map I thought "wow that would make an amazing fantasy map setting" and here is me trying to make a fantasy world map.
I have also included the Russian oblast of Ashtrakhan and the island of Socotra just for the hell of it, and there's markers denoting where large ruins are, where large giant populations are, and where merfolk populations are. If anyone has any questions feel free to ask I suppose. Anyone have any arctic magical beast ideas? I can't really think of any.