Botswana is 1,312,325 times larger than Riverside Park (Manhattan).
Area: 581,730 km2 World Factbook
Population: 2,155,784 (July 2014) World Factbook
Botswana, officially the Republic of Botswana, is a landlocked country located in Southern Africa. The citizens refer to themselves as Batswana. Formerly the British protectorate of Bechuanaland, Botswana adopted its new name after becoming independent within the Commonwealth on 30 September 1966. Wikipedia
Area: 0 km2 calculated
Riverside Park is a scenic waterfront public park on the Upper West Side of the borough of Manhattan in New York City, operated and maintained by the New York City Department of Parks and Recreation. Wikipedia