For the last time it took into account the fortress works created in the interest of Polish defense during the Duchy of Warsaw. Fortifications were a logical development of the original fortification intention of the late 16th century.
The nature of the tangent silhouettes of the Renaissance city is fully preserved over the ring of the fortifications.
Despite the fact it was founded in the 30s of the 19th century, it was still the image of the ideal landscape of the bastion fortification, little deviating from the vision of the fortresses of 17th and 18th century.