You could fit a small town on the footprint of a mall. Now, some cities are doing that.
99% Invisible | The Gruen Effect
Retrofitting Suburbia by Ellen Dunham-Jones and June Williamson
Victor Gruen Papers | University of Wyoming. American Heritage Center
Shopping Towns USA by Victor Gruen
Mall Maker: Victor Gruen, Architect of an American Dream by M. Jeffrey Hardwick
WIRED | Architecture Professor Explains Why Malls Are Dying
Crosscut | Will the last person to leave Northgate Mall turn out the lights?