Where in the world?
The flag of Liechtenstein has two horizontal bands of blue and red, with a gold crown in the upper hoist-side corner.

Liechtenstein

Population: 38,137

Region: Europe

Subregion: Central Europe

Capital: Vaduz

Top Level Domain: .li

Currencies: Swiss franc

Border countries

The flag of Austria has three horizontal bands of red, white, and red.

Austria

Population: 8,917,205

Region: Europe

Capital: Vienna
The flag of Switzerland has a red field with a white cross in the center.

Switzerland

Population: 8,636,896

Region: Europe

Capital: Bern