I'm going to make a dark kingdom in Ravenwood.
The biggest lot in Crow's Crossing basically has a moat already so its a natural for the primary ruler's castle. The town will be a mix of living and ghosts of former inhabitants.
The reclusive Baron of Mourningvale lives in a gothic mansion on the Mystic Crossroads lot. He is a vampire and presides over a realm filled with ghosts and supernatural creatures where living humans are a rare sight.
In Whispering Glen, that big 64x64 lot is the home to the working estate of a once powerful Duke and Duchess. The fortunes have faltered over the years, and they spend most of their time looking for ways to gain favor with the King to restore their position in society. Here you find few ghostly inhabitants, but at night you can hear something howling at the moon.