III High School named after Jan Kochanowski in Kraków, commonly known as "Trójka", was founded in 1906 as the Imperial-Royal Gymnasium V. Its official opening took place on September 4 of the same year, and the school was initially located in a building at 5 Stanisław Stachowski Street. In 1918, after Poland regained independence, the school underwent a reform and was renamed the V State Gymnasium named after Jan Kochanowski. During World War II, the school's operations were suspended, but teachers and students continued education through underground teaching. After the war, the school resumed its activities, and in 1953 it adopted its current name. In 1968, it was relocated to a new building in the Wysokie housing estate in Nowa Huta, a move resulting from the development of this district. Architecturally, the high school building stands out for its functionality and adaptation to the needs of students. The high school engages in numerous competitions and events, both athletic and artistic, as evidenced by the students' many achievements, such as successes in the "Run for Captain Antoni Stawarz's Saber" and in subject Olympiads. Since 2008, the school has been organizing "Trójkowe Czwartki Salon", where students meet personalities from the world of culture and art, including renowned artists and creators. The school has established cooperation with a number of foundations and institutions, contributing to the development of its educational programs, including ecological and language initiatives. An interesting fact is that the school was a participant in a UNESCO pedagogical experiment, highlighting its openness to modern teaching methods. Throughout its history, the high school has received numerous awards, including the Medal of the National Education Commission and the UNESCO Medal for its activities within the associated schools network. Graduates of "Trójka" are prominent figures in various fields, including literature, art, science, and politics, which attests to the high quality of education provided.