The only one of the original five old town gates that survived. It was constructed around 1600. Back then, it was an arsenal which stood next to the place the Brno executioners stayed. In 1865, it was converted into a house, and now it serves as an exhibition space for the Brno City Museum.
The current building was rebuilt in the second half of the 19th century. The building is not that attractive looking, but I would still praise the attempt to keep the original gate.