City Directory (Database)

I am looking for a plug-in that will allow me to create an online directory of cities around the world. I need this to work via a dropdown list of cities which when selected will take the user to a page with some key information regarding that city. Potentially there could be hundreds of cities so would like this to work from an imported database (if possible).

Does anyone know of any plug-ins that might be able to provide this kind of functionality?