The Giant Mountains, Krkonoše, or Karkonosze, are a mountain range located in the north of the Czech Republic and the south-west of Poland, part of the Sudetes mountain system. The Czech-Polish border, which divides the historic regions of Bohemia and Silesia, runs along the main ridge. The highest peak, Sněžka, is the Czech Republic's highest natural point with an elevation of 1,603 metres (5,259 ft).

Czech, historically also known as Bohemian, is a West Slavic language of the Czech–Slovak group, written in Latin script. Spoken by over 10 million people, it serves as the official language of the Czech Republic. Czech is closely related to Slovak, to the point of high mutual intelligibility, as well as to Polish to a lesser degree. Czech is a fusional language with a rich system of morphology and relatively flexible word order. Its vocabulary has been extensively influenced by Latin and German.