The Isartor is one of four main gates of the medieval city wall. It served as a fortification for the defence and is the most easterly of Munich's three remaining gothic town gates (Isartor, Sendlinger Tor and Karlstor).
The Isartor was constructed in 1337 within the scope of the enlargement of Munich and the construction of the second city wall between 1285 and 1337 which was completed under the Emperor Louis IV. The gate first consisted of a 40 meter high main gate tower. Only with the construction of the moat wall of the gate tower the two flanking side towers were added and served as barbican. The Isartor is today the only medieval gate in Munich which has conserved its medium main tower and the restoration in 1833-35 by Friedrich von Gärtner has recreated the dimensions and appearance close to the original structure. The frescos, created in 1835 by Bernhard von Neher, depict the victorious return of Emperor Louis after the Battle of Mühldorf in 1322.
The Isartor today houses a humorous museum which is dedicated to the comedian and actor Karl Valentin. A café for visitors has been integrated.
References:Visby Cathedral (also known as St. Mary’s Church) is the only survived medieval church in Visby. It was originally built for German merchants and inaugurated in 1225. Around the year 1350 the church was enlarged and converted into a basilica. The two-storey magazine was also added then above the nave as a warehouse for merchants.
Following the Reformation, the church was transformed into a parish church for the town of Visby. All other churches were abandoned. Shortly after the Reformation, in 1572, Gotland was made into its own Diocese, and the church designated its cathedral.
There is not much left of the original interior. The font is made of local red marble in the 13th century. The pulpit was made in Lübeck in 1684. There are 400 graves under the church floor.