Katowice, the capital of the Silesian Voivodeship, was a small village for centuries and was granted town rights only in 1865. The city's rapid growth was driven by hard coal mining, which flourished here in the second half of the 19th century and shaped its character for a long time. We created a mobile app to accompany a bus tour of Katowice. The recordings present the history of the city and its most important sights passed along the route. The app is available in Polish and English.