A military structure located at the bend of the town’s fortifications. Its aim was to reinforce the already existing defensive structures. It has a shape of a pentagon surrounded with a wall embankment. The front parts of the bastions are 71 and 77 m long. In the first half of the 19th century casemates were built. Inside there are shooting galleries. The bastion was destroyed in 1866 when the fortress was being closed down. In 1977-1984 it was reconstructed in its original shape. The tip of the bastion used to be decorated with Tomasz Zamoyski’s cartouche, which is now placed on town hall stairs.