Nannyatropolis

Nannyatropolis (referred to as City in Supernanny: The Theory of Nicole and Supernannya City in The Terrific 10 Saves the Holidays) is the capital city of the Empire of Supernannya. It has a population of 100 million.

In the Theory Games
It makes its first appearance as a World in Supernanny: The Theory of Nicole. It is shown to have a casino, a cinema, several restaurants, and various stores. Christine Moranis is the boss in the world.

In Supernanny: The Theory Animated
The city in the anime has a redesigned appearance. It is now larger, containing more public areas. The stores and public places from the Theory games return, but with updated looks. The name of Nannyatropolis is revealed in the episode Good-Ol' King Kool.