Mark Laveer on May 11, 2013 wrote:

Skull Island
Enviroment: A beachy feeling, also has some jungles.
First Boss: Marcus
Final Boss: Gortez

Monquista
Enviroment: Spanish-esque buildings in a barren roughland.
First Boss: Warden Mendez
Final Boss: Valvida Brothers

Valencia
Enviroment: Emerald stormy skies, with armada stations and Italian structures, too.
First Boss: Armada Ambush (Optional, complete to unlock Ridolfo Capoferro)
Final Boss: Phule (Does not fight directly)

Cool Ranch
Enviroment: Wild West, plus some small bits of Spanish stuff.
First Boss: Jackalopes
Final Boss: Deacon

Mooshu
Enviroment: Japanese and Chinese, similar to the W101 incarnation.
First Boss: Unknown
Final Boss: Water Guardian

Aquila
Enviroment: Seems Greek or Spartan, plus mythological citizens.
First Boss: Unknown
Final Boss: Unknown

Marleybone
Enviroment: London-like.
First Boss: Unknown
Final Boss: Unknown

Nice guide of the worlds! Now here are the location of them:

Albion Marleybone
Mooshu
Skull Island Aquila
Cool Ranch Monquista
Valencia
From the map I just made, I think their could be a Stormgate from Mooshu to Aquila and Albion doesn't border any worlds or they're unkown. This is a 80% Accurate Map so if more people want to add another part of the guide, that would be great so we gather more info. We might learn some stuff where the Worlds are in the map above. If I get 5 Yars, I'll draw a Spiral Map and put it on Central. Now we don't know where all of the worlds are so this isn't 100% complete and may never be cause KI might still be round here after most of us die, so the new Generation can enjoy Wizard101, Pirate101 and probably other countless games. Keep it up!