Where in the world?
The flag of the Netherlands has three horizontal bands of color: red on the top, white in the middle, and blue on the bottom.

Netherlands

Nederland

Population: 17,441,139

Region: Europe

Subregion: Western Europe

Capital: Amsterdam

Top Level Domain: .nl

Currencies: Euro

Border countries

The flag of Belgium has three vertical bands of black, yellow, and red.

Belgium

Population: 11,555,997

Region: Europe

Capital: Brussels
The flag of Germany has three horizontal stripes of black, red, and gold.

Germany

Population: 83,240,525

Region: Europe

Capital: Berlin