Public Space   Besides private residential space and the component parts that make up the principal social organs of the city, the urban experience requires diverse and expressive public places, both inside and outside a building or a group of buildings. Whereas this aspect of the city was of vital importance in earlier eras of New York, the public architecture of the later 20th century often took second place to private development. Very dense cities like New York urgently require architecture that creates a memorable public realm. Macrae-Gibson Architects has completed dozens of such spaces and urban experiences, which include lobbies, winter gardens, facades, parks, arcades, new building complexes and building top illuminations.