The Development Corporation had an ambitious public art programme and over 50 works were commissioned, mostly still extant. This programme also had two strands: a populist one which involved the local community in the works, the most famous of which is Liz Leyh's "Concrete Cows", a group of concrete Friesian cows which have become the unofficial logo of the city; and a tradition of abstract geometrical art, such as Lilliane Lijn's "Circle of Light" hanging in the Midsummer Arcade of the Central Milton Keynes shopping centre.