by an additional . Its defenses were also augmented with approximately twenty new towers attached to the east part of the wall. When King Valdemar IV of Denmark captured the town in 1361, he ordered a part of the wall to be torn down as a symbolic act. It was done to emblematize the town's subjugation, a practice going back to classical antiquity. The razed part of the wall was rebuilt in 1363. The corner tower known as the Silverhättan (the Silver Cap) probably dates from the period in which Visby belonged to the Teutonic Knights (1398–1408). It is possible that two lesser towers facing the sea, also date from this time. The last great attack on Visby took place in 1525, when troops from Lübeck assaulted the town. The Lübeckerbräschen (the Lübeck Breach) is traditionally assumed to be the visible remains of the troops' breach into the town, but is more likely due to a later collapse of this part of the wall. However, it is in the part of the wall where the troops from Lübeck most probably damaged the town's defenses. During the 17th and early 18th century, two caponiers were added to the eastern section of the wall. The defensive purpose of the wall had by that time otherwise completely ceased and the wall survived mainly in its capacity as a toll barrier. When domestic tolls were abolished in Sweden in 1810, the city wall was already a known landmark, which guaranteed its survival. The city wall was restored in 1884 to 1886 by architect Emil Victor Langlet. In 2012, a long section of the outer dressing of the wall collapsed. Restoration of the collapsed section began in 2013. The wall is the strongest, most extensive medieval city wall in Scandinavia and the best preserved. Large parts of the original wall remain intact, and it incorporates the majority of the medieval large full-length towers, so-called "saddle towers" (small towers riding on the wall) and gates. In addition, large parts of the original system of trenches have been preserved outside the wall. The city wall is mostly unencumbered by the presence of modern buildings with very few visible from outside the wall. Taken as a whole, this provides for a uniquely genuine picture of what a medieval city wall was like in its original state. Construction The wall was built during two periods, the 13th and the