Minecraft Map Converter is a free Minecraft map converter tool.
ScenicReflections/Bit Wise Publishing
Ancient City Ruins 3D Screensaver shows a nice cartoonish animation with ruins.
Green City 2 is a city management simulation game with an ecological theme.
Urban Specialist is a side-scrolling shoot´em up game.
The Overviewer Team
This program generates a map for your minecraft world.
Another good game from Telltale that puts the world of Minecraft to good use.
Screensaver featuring animated night views of urban landscapes.
The City Map gives players an overview of the structure and role of a city.
Big Robot / Channel4
In this game you can puzzle your way through six ruined districts of the city.
Can do many things like map backups and lots more minecraft.jar backups.
Bring the San Andreas map to Vice City's version of the Renderware engine.
Arctic Owl Software
Map Scholar quizzes about world geography, country and city locations.
It helps you find a bike in your city, using map and geolocalisation technology.