If you're new to town, then you might be slightly overwhelmed by the size and bustling chaos of the major cities.  Both the Elyos and the Asmodians have one of these central cities and while you will spend a lot of time in various zones, regardless of what level you are you'll always find need to visit Pandaemonium and Sanctum.

While these cities are great in the fact that they contain nearly everything you need for your character, it is difficult to find what you need quickly.  NPCs and various features are scattered around the zones and unless you know where you're going, you may be wasting a lot of time hunting for what you want.

Someone put together these maps to aid fellow players.  Major NPCs have their locations marked and are color coded for quick reference.  This is by far the easiest way to find the NPC you are looking for.  A huge thank you to Khalus for taking the time to make these and share them with the community.

You can get the original full size versions of the maps here:

Pandaemonium

 Sanctum