Where in the World?
The flag of Czechia is composed of two equal horizontal bands of white and red, with a blue isosceles triangle superimposed on the hoist side of the field. The triangle has its base on the hoist end and spans about two-fifth the width of the field.

Czechia

Native Name: Česko
Population: 10,698,896
Region: Europe
Subregion: Central Europe
Capital: Prague
Top Level Domains: .cz
Currencies: Czech koruna
Languages: Czech, Slovak
Border Countries: