ブローニュの森
The land area of this arrondissement is 16.305 km2 ( or 4,029 acres), slightly more than half of which consists of the Bois de Boulogne park. Excluding the Bois de Boulogne, its land area is 7.846 km2 ( or 1,939 acres). It is the largest arrondissement in Paris in terms of land area.