CANADA - DECEMBER 21:  Town planner chooses Toronto: Mrs. Jane Jacobs; one of North America's leading authorities on design of cities; stands in front of the Toronto home on Spadina Rd.; just north of Bloor St.; where she and her family have decided to live. She and her architect husband picked Toronto as a home; she says; because it offers a nice balance between a city's inherent advantages and disadvantages.   (Photo by Frank Lennon/Toronto Star via Getty Images)