My campaign world isn't fully defined, but what is defined so far is a hybrid of various settings and homebrewed locations.
The party started off in "Brindol" (Scales of War), moved along the King's Road (Keep of the Shadowfell), through the Dragonwood (homebrew), and has been adventuring in Punjar (from Goodman Games' world) since then.
Surrounding "Brindol" lies the Fire Forest (War of the Burning Sky), a dwarven/warforged version of Airspur (Forgotten Realms), snake worshipping empire of united Koth/Shem/Stygia (Conan), and the Sind Desert (X4 - Master of the Desert Nomads).