The Witches' Tower in Słupsk is a remnant of the city's medieval defensive system, the construction of which began in the 14th century. The original fortifications, built of erratic boulders and brick in Wendish and Polish bonds, were erected in various stages, with initial wooden superstructures. In the 15th century, the tower gained a fully enclosed structure. The Słupia River surrounding it enhanced the city's defensiveness. An intriguing historical aspect is the conversion of the tower's interior into a prison in the 17th century for women accused of witchcraft, where torture was applied. The last known victim of the witch trials in Słupsk was Trina Papisten. In the 19th century, the building served as a stable and later became a prison again until 1945, when it was damaged during wartime operations. The reconstruction of the Witches' Tower took place between 1970 and 1973, transforming its interior and façade. Today, it is located at 13 Francesco Nullo Avenue. The tower not only reflects the rich history of Słupsk but also serves as an example of defensive architecture, attracting tourists with its unique character and historical heritage. It is also worth noting the 17th-century map by E. Lubinus, which documents the tower's appearance at that time.