public class City

{

    public string Name { get; set; }

    public string Country { get; set; }

}

List cities =

            new List<City>

            {

                new City{ Name = "Sydney", Country = "Australia" },

                new City{ Name = "New York", Country = "USA" },

                new City{ Name = "Paris", Country = "France" },

                new City{ Name = "Milan", Country = "Spain" },

                new City{ Name = "Melbourne", Country = "Australia" },

                new City{ Name = "Auckland", Country = "New Zealand" },

                new City{ Name = "Tokyo", Country = "Japan" },

                new City{ Name = "New Delhi", Country = "India" },

                new City{ Name = "Hobart", Country = "Australia" }

            };

var collection =

    from c in cities

    orderby c.Country

    select c;