This is the only result I got for 'Gensokyo map' ROFL
One of the things that anime is surprisingly not very good at is creating a fully-realized fictional ‘world.’ When you open up a fantasy book (and fantasy is of course the best genre for fictional worlds) you are often confronted with a ‘world map’ right off the bat. You will be given details about all sorts of countries and locations and customs, etc., to bring this world to life as you read. The reason that this doesn’t really happen in anime is for the same reason it does happen a whole lot in JRPGs – time.
My Sword Is Unbelievably Dull 