Where in the world?
The flag of Hong Kong has a red field with a white, five-petal Bauhinia flower in the center.

Hong Kong

香港

Population: 7,481,800

Region: Asia

Subregion: Eastern Asia

Capital: City of Victoria

Top Level Domain: .hk

Currencies: Hong Kong dollar

Border countries

The flag of China has a red field with five yellow stars in the top left corner, one large star surrounded by four smaller stars in a semicircle.

China

Population: 1,402,112,000

Region: Asia

Capital: Beijing