Azyrheim: Also known as the Eternal City, is a celestial city and an ancient stellar metropolis shining brightly at the heart of the Celestial Realm. It's the last of the great cities and within it's walls man, aelf and duardin coexist peacefully. Many refuges from the Age of Chaos dwell here. Sigmar rebuilt his armies here, preparing for the counterstrike against Chaos.
Sigmarion: Sigmar's greatest fortress standing high above the celestial realm land's and Mallus. From its highest spire Sigmar look down on the whole of Azyr.
Sigmaron: Sigmar's great palace city. The equipment of the Stormcast Eternals are forged here.
Mallus: Mallus are the remains of the world-that-was set in the firmament by Dracothion. It's from here that Sigmarite is mined. It's energies are what make the stormcast eternals possible, reforged in the Chamber of the Broken World.
Hallowguild: Freeguild city, from the "Gate of Stars" Campaign.