The Lublin Underground Route is a unique, approximately 300-meter-long tourist trail that runs beneath the buildings of Lublin's Old Town, at a depth of 9 to 12 meters. It was opened in June 2006, and the route begins at the Crown Tribunal and ends in one of the tenement houses at Po Farze Square. The trail consists of corridors and chambers formed by connecting numerous 16th-century cellars, dating back to when Lublin was a major commercial hub in Poland. At that time, these cellars served as merchant warehouses, highlighting the historical and architectural value of the space. The route is both educational and touristic, offering visitors insights into the city's history through models depicting various stages of urban development. Interestingly, some of these models were created by disabled youth as part of a special therapy program. The highlight of the tour is a multimedia visualization of the Great Fire of Lublin in 1719, which dramatically portrays the events of that day and immerses visitors in the 18th-century context. The route begins at the former seat of secular power and ends at a site tied to the city's religious life, emphasizing its rich cultural and historical significance. The "Grodzka Gate – NN Theatre" Centre oversees the route, ensuring its promotion and contributing to regional education.