Ehrenbreitstein Fortress, Prussian fortress on Rhine riverbank in Koblenz, Germany
The fortress rises 118 meters (387 feet) above the Rhine and overlooks the confluence of Rhine and Moselle rivers near Koblenz, featuring massive stone walls and multiple defensive levels.
Built on foundations from 1000 when nobleman Ehrenbert erected a castle, the Prussian fortifications were constructed between 1817 and 1828 following plans by engineer von Aster.
The state museum inside presents rotating exhibitions on technology, archaeology, and military subjects through interactive installations and object collections spanning multiple centuries.
A cable car from downtown Koblenz transports visitors daily to the fortress, which includes various exhibition rooms, viewing platforms, and dining facilities throughout the complex.
The arsenal contains the Vogel Greif, among the largest surviving cannons from its period in Europe, originally positioned to defend the Rhine valley from advancing armies.
Location: Koblenz
Inception: 1828
Part of: Koblenz Fortress
Website: http://diefestungehrenbreitstein.de
GPS coordinates: 50.36500,7.61528
Latest update: November 28, 2025 21:12
Military buildings from different countries demonstrate the evolution of defense structures and command centers across centuries. This collection includes medieval castles, early modern fortifications, barracks, command posts, and contemporary military installations. Each structure documents the military strategies, technological advances, and historical events of its era. The sites range from European fortress systems such as Vauban fortifications in France to Asian defensive walls and American military bases from various periods. Many of these structures played critical roles in wars and conflicts and are now accessible as monuments or museums. They provide insights into military architecture, engineering practices, and the strategic importance of their locations.
Rhineland-Palatinate preserves centuries of European fortification architecture across a region shaped by river valleys and forested highlands. Medieval castles like Eltz Castle rise above the Moselle loop at Bremm, while Pfalzgrafenstein Castle sits on a Rhine island at Kaub, where it once controlled river traffic. Roman foundations lie beneath later structures such as Limburg Monastery near Bad Dürkheim, and Romanesque abbeys like Maria Laach demonstrate monastic design from the 11th century. The landscape ranges from the Teufelsfels rock formation in the Hunsrück to the ruins of Hardenburg, among the largest fortress complexes in the state. From the Rhine Valley with Stolzenfels Castle and the Loreley to the Palatinate fortresses of Hambach and Trifels, these sites document the region's strategic importance. Pyrmont Castle stands beside a waterfall near Roes, while the ruins of Frankenstein Castle near Kaiserslautern show medieval defensive works. Natural formations like the Kaltwasser Geysir at Andernach and the Geierlay Suspension Bridge at Mörsdorf complement the historical structures, providing access to the geological features between the Rhine, Moselle and Nahe rivers.
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