hey just thought of a few map ideas
Maybe make a Harry Potter themed map:
Azkaban
The Burrow
Diagon Alley (with or without Gringotts Wizarding Bank)
Hogsmeade
the list could go on
World of warcraft:
ICC/other dungeons n raids
battle grounds and arean’s
Your home town:
*explained in the title really
Simpsons:
Springfield its self or buildings on there own
Southpark:
same as above but as southpark ofc
well you get inspiration everywere , if ur that bored Make the scdool you went/go to 
Also event themed maps
be careful here some things may offend people Btw i dont wish to offend people this is just ideas, sorry if it does
i.e
Xmas , xmas tree with presents etc
WW1/2, make poppys, planes, pearl harbour maybe?
well i think you get my point 