Gambia is 272,721 times larger than Hagaparken.
Area: 11,295 km2 World Factbook
Population: 1,925,527 (July 2014) World Factbook
The Gambia is a country in West Africa. It is surrounded by Senegal, apart from a short strip of Atlantic coastline at its western end. It is the smallest country on mainland Africa. Wikipedia
Area: 0 km2 calculated
Hagaparken, or simply Haga in Solna Municipality just north of Stockholm, Sweden is a vast and popular nature area, with large parks, lakes, woods and gardens. Wikipedia