Some urban parks by size

https://en.wikipedia.org/wiki/List_of_urban_parks_by_size

https://en.wikipedia.org/wiki/Mission_Bay_(San_Diego)

https://en.wikipedia.org/wiki/Presidio_of_San_Francisco

https://en.wikipedia.org/wiki/Memorial_Park,_Houston

https://en.wikipedia.org/wiki/City_Park_(New_Orleans)

https://en.wikipedia.org/wiki/Balboa_Park_(San_Diego)

https://en.wikipedia.org/wiki/Middle_Harbor_Shoreline_Park Oakland, Cal

https://en.wikipedia.org/wiki/Lincoln_Park Chicago

https://en.wikipedia.org/wiki/Van_Cortlandt_Park NYC

https://en.wikipedia.org/wiki/Emma_Long_Metropolitan_Park Austin, TX

https://en.wikipedia.org/wiki/Assiniboine_Park Winnipeg, Manitoba

https://en.wikipedia.org/wiki/Bushy_Park London, UK

https://en.wikipedia.org/wiki/Golden_Gate_Park SF, California 

https://en.wikipedia.org/wiki/Kings_Park,_Western_Australia

https://en.wikipedia.org/wiki/Stanley_Park Vancouver, BC  https://dailyhive.com/vancouver/vancouver-park-board-abolition-reactions

https://en.wikipedia.org/wiki/Central_Park