The Gate can be visited
Town Fortification Nördlingen-Löpsinger Gate

The Löpsinger Tor in Nördlingen is a component of the city fortifications in the Bavarian Donau-Ries region. It is part of Germany's only fully preserved and accessible city wall.
History+
Construction of the Nördlingen city wall began in 1327 at the behest of Louis IV, Holy Roman Emperor, to replace an older defensive rampart. The Löpsinger Tor, which protected a trade route to Nuremberg, was built before 1388. In 1592, it was demolished and rebuilt in the style of the Deininger Tor by Wolfgang Walberger over the following two years. A sundial was added in 1837.
Source: Wikipedia · Licence: CC BY-SA 4.0 · Image: Rudolf Henkel
This description draws on the facts documented in the linked Wikipedia article; Wikipedia content is licensed under CC BY-SA 4.0. Wording and editing: Mobile History.
Location: 48.8543, 10.4928