Where in the world?
The flag of French Guiana divides diagonally with green in the upper fly and yellow in the lower hoist and bears a red five-pointed star in the center.

Guiana

Native name: French GuianaPopulation: 292,354Region: AmericasSub region: South AmericaCapital: CayenneTop level domain: .gfCurrencies: euroLanguages: French
Border Countries:BrazilSuriname