Tourist attraction object.
English name: Neuendorf Flèche.
German original name: Neuendorfer Flesche.
DE-Wikipedia https://de.wikipedia.org/wiki/Neuendorfer_Flesche
Wikidata https://www.wikidata.org/wiki/Q1979996

German original name: Feste Kaiser Franz.
English name: Emperor Franz Stronghold.

The historical landmark.
The english name: Rhein Wing of Casemate Corps.
The german name: Rheinflügel des Rheinkasemattenkorps.
Source: https://de.wikipedia.org/wiki/Rheinanschlusskaserne

The historical landmark and the part of Main Fortress.
English name: New Arsenal.

The tourist attraction and the historical landmark. Was the part og Mainz Fortress.
The original german name: Raimunditor.
The english name: Raimundi Gate.
Source: https://commons.wikimedia.org/wiki/File:Raimunditor_Mainz.jpg

The historical landmark and was part of Mainz Fortress.
The german original name: Proviantmagazin.
The english name: Provisions Depot.
Source: http://www.festung-mainz.de/festung/proviantmagazin.html
https://www.geonames.org/12122573/provisions-depot-of-mainz-fortress.html

The turist attraction and histirical landmark.
English name: Castle Gate.
German original name: Schloßtor.
Castle Gate was built in 1880 as the part of Rhein Wall, which in turn was the part of Mainz Fortress.

The historical landmark and the part of Koblenz Fortress.
Original german name: Exerzierhalle der Erbgroßherzog Friedrich Kaserne.
The english name: Exercise Hall of Grand Duke Friedrich Barracks.
Source: https://www.geonames.org/12123084/exercise-hall-of-grand-duke-friedrich-barracks.html
https://de.wikipedia.org/wiki/Erbgro%C3%9Fherzog-Friedrich-Kaserne_(Koblenz)

The original German name: Wachturm am Reckberg. source: https://de.wikipedia.org/wiki/Kleinkastell_am_Reckberg

The english name: Iron Tower.