The Judgement Tower (Sodni stolp) is one of the surviving elements of Maribor's medieval town walls, a squat round tower that once formed part of the fortifications along the Drava. It stands near the western end of the Lent promenade and is one of the more atmospheric old structures in the city. The tower is now used as an exhibition space and you can climb to the top for a view over the riverside.
Several other tower fragments survive from the medieval walls — including the Water Tower at the eastern end of the promenade — and together they give a sense of the fortified character the city once had. The walls themselves have largely disappeared, absorbed into later buildings or demolished outright, but the towers remain as markers of the original line. The Judgement Tower and the Water Tower are the most accessible and interesting of the survivors.