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ControlledApplication.Cities

Property
Description:
Returns a set of all the known city locations within Revit.
Remarks:
Each city has information about longitude, latitude etc.
Syntax
public CitySet Cities { get; }
Examples
// Get all Revit support cities
Autodesk.Revit.DB.CitySet cities = application.Cities;

// Set all Revit support cities into an ArrayList
System.Collections.ArrayList cityList = new System.Collections.ArrayList();
foreach (Autodesk.Revit.DB.City city in cities)
{
    cityList.Add(city);
}