Where in the world?
The flag of Greece has nine horizontal stripes of blue and white, with a blue canton containing a white cross.

Greece

Ελλάδα

Population: 10,715,549

Region: Europe

Subregion: Southern Europe

Capital: Athens

Top Level Domain: .gr

Currencies: Euro

Border countries

The flag of Albania has a red field with a black double-headed eagle in the center.

Albania

Population: 2,837,743

Region: Europe

Capital: Tirana
The flag of Bulgaria has three horizontal stripes of white, green, and red.

Bulgaria

Population: 6,927,288

Region: Europe

Capital: Sofia
The flag of Turkey has a red field with a white star and crescent slightly left of center.

Turkey

Population: 84,339,067

Region: Asia

Capital: Ankara
The flag of North Macedonia has a red field with a yellow sun in the center, featuring eight broadening rays extending to the edges of the field.

North Macedonia

Population: 2,083,380

Region: Europe

Capital: Skopje