1. Markets, spectacles or meeting places
Cities’ empty spaces
Markets, spectacles or meeting places

3.
Smith, Michael E. (2010) The Archaeological Study of Neighborhoods and Districts in Ancient Cities. Journal of Anthropological Archaeology 29 (2):
Stanley, Benjamin W., Barbara L. Stark, Katrina Johnston and Michael E. Smith (2012) Urban Open Spaces in Historical Perspective: A Transdisciplinary Typology and Analysis. Urban Geography 35 (8):

4. What are cities’ empty spaces? Towards a definition
Green space represents a subset of open space, consisting of any vegetated land or structure, water, or geological feature within urban areas
(1) food production areas
(2) parks and gardens
(3) recreational space
(4) plazas
(5) streets
(6) transport facilities
(7) incidental space
Grey space refers to more civic-oriented spaces such as urban squares, market places and other paved or hard landscaped areas
city-wide, intermediate, and individual building

5. Amarna neighborhoods

6. Mycenaean palaces

10. Mesoamerican plazas