Editing Erfurt (section)

=====Fortifications=====
[[File:Zitadelle_Erfurt.jpg|thumb|[[Petersberg Citadel]].]]
From 1066 until 1873 the old town of Erfurt was encircled by a fortified wall. About 1168 this was extended to run around the western side of Petersberg hill, enclosing it within the city boundaries.<ref name=walls>Stadtverwaltung Erfurt (4 September 2012). [http://www.erfurt-web.de/Stadtbefestigung ''Stadtbefestigung einst und jetzt''] {{Webarchive|url=https://web.archive.org/web/20211026171154/http://www.erfurt-web.de/Stadtbefestigung |date=26 October 2021 }}. Retrieved 28 December 2017</ref>

After [[German Unification]] in 1871, Erfurt became part of the newly created [[German Empire]]. The threat to the city from its Saxon neighbours and from Bavaria was no longer present, so it was decided to dismantle the city walls. Only a few remnants remain today. A piece of inner wall can be found in a small park at the corner Juri-Gagarin-Ring and Johannesstraße and another piece at the flood ditch (''Flutgraben'') near Franckestraße. There is also a small restored part of the wall in the Brühler Garten, behind the Catholic orphanage. Only one of the wall's fortified towers was left standing, on Boyneburgufer, but this was destroyed in an air raid in 1944.<ref name=walls />

The [[Petersberg Citadel]] is one of the largest and best preserved city fortresses in Europe, covering an area of 36 hectares in the north-west of the city centre. It was built from 1665 on Petersberg hill and was in military use until 1963. Since 1990, it has been significantly restored and is now open to the public as an historic site.<ref name="350jahre">Verein der Freunde der Citadelle Petersberg zu Erfurt e.V. (2015). ''350 Jahre Zitadelle Petersberg. Tagungsband: Wissenschaftliches Kolloquim zum 350. Jahrestages der Grundsteinlegung der Zitadelle Petersberg vom 29. Mai bis 31 Mai 2015. Universität Erfurt''.</ref>

The {{Interlanguage link multi|Cyriaksburg Citadel|de|3=Zitadelle Cyriaksburg}} is a smaller citadel south-west of the city centre, dating from 1480. Today, it houses the German horticulture museum.<ref>[https://www.gartenbaumuseum.de/die-cyriaksburg.html ''Die Cyriaksburg: Sitz des Deutschen Gartenbaumuseums Erfurt''] {{Webarchive|url=https://web.archive.org/web/20171229232259/https://www.gartenbaumuseum.de/die-cyriaksburg.html |date=29 December 2017 }}. Retrieved 23 December 2017</ref>