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 nearly 1 million.

In the Theory Games
It first appears as a world in Supernanny: The Theory of Nicole. It has a casino, a cinema, several restaurants, and various stores. Christine Moranis is the boss in this world.

In Supernanny: The Theory Animated
In the anime, the city has been redesigned to include more public areas. The stores and public places from the Theory games return, but with new looks. The name of Nannyatropolis is revealed in the episode Good-Ol' King Kool.