@Lewascan2 We could always play it out as Pangeea. One continent, linked together. That way we'll have a massive contient that, we can explore if we want and it's still based on Earth's geography albeit a very old one.
Plus maybe each section of the Pangea continent has it's own atmosphere/environment (tropical coast, arid deserts, snowy mountains, plains, forests, etc.). This is probably a 'No Duh' thought. ^^"
If we wanted the characters to go somewhere more unique: Going to other planes might also be an option (Feywild, Shadowfell, Elemental Planes, etc.)