The bell tower is located in Bergamo near Visconti Castle. It is also called the castle tower. It is a military tower that was built for defensive purposes. It became the property of the city in 1797 AD when it was used as the seat of the province. Since then, it has been subjected to many restorations, the last of which was in 2010 where The bell at the top of the tower has been restarted, and it is considered an important tourist attraction in the city due to its long history.