It dates back to the origins of the town's history, a period when Bělá was fortified. The ramparts featured five gates and a small one through which people would fetch water from below the town. The tower at the gate has a square ground plan and 2.3 m thick stone walls. It is about 13 m tall, which is only a part of the original height according to historical sources. The roof has a new frame and roofing. The area outside the gate is also interesting because it has remnants of the drawbridge which served as an entranceway over a moat that was a part of the fortification.