The city wall of Dinkelsbühl is very well preserved thanks to King Ludwig I of Bavaria. It still has 16 towers and four gates. The first almost circular fortification from the early 13th century can still be seen in today's street structure, but only remains are preserved at the Wörnitztor.
From 1372, in connection with an expansion of the urban area, the construction of the fortification ring began, which is still almost unchanged today. The work continued until the Thirty Years War with a total of 55 towers and gates. It is a closed wall ring with four inner city gates, four abandoned outer city gates, once 22 individually designed watchtowers, 18 kennel stands and bastions of the inner city wall, others on the outer city wall as well as a moat and lined wall. The Dinkelsbühl town mill, which is integrated into the fortification as a fortified mill, is unique.
Today's four city gates are: in the east the Wörnitztor at the Mühlgraben fed by the Wörnitz, in the north the Rothenburger Tor, in the west the Segringer Tor on the road to the neighboring town of Segringen, in the southeast the Nördlinger Tor. The city gates are listed as architectural monuments under separate file numbers.
The following watchtowers are present in the course of the city wall: Dalkinger tower (stump), digestion tower, green tower, Dreikönigsturm, guard tower, Berlin tower, Haymersturm, kebab tower (remains of the base), white tower, hailstorm, Hertlesturm, Krugsturm, salwart tower, two Radstatt towers of the city mill, Am Türlein (stump), Bäuerlinsturm, Henkersturm, Dreigangsturm, Kleine Bastei.