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Citadel Hill in Halifax is a fortress and a national historic site.  Aerial view showing the star shape of the walls, grass and some of the downtown city.
Japanese bunker of WWW II,located on the side of YaLu River at DanDong, LiaoNing, province,China
Picture of the citadel of Belfort in France. On the right side you can see a massive wall and a lookout tower. In the background are trees above the wall
Italian seaport and harbor city in Tuscany, Italy
Lucca, Italy: detail of the Renaissance defensive walls around the city. HQ photo
Fragments of the famous Montjuïc fortress, which was also a prison
Luxembourg City, Luxembourg - Feb 3, 2020: Fort Thungen and Mudam Luxembourg Museum - Luxembourg City, Luxembourg
South Shields, England - September, 06 2021: Front facade of the reconstruction of the entrance to the Roman fort of Arbeia at South Shields, England. It is located near the east end of Hadrian's Wall and is part of a larger complex of buildings.
Silver Mountain, Poland - October 2, 2021: Silver Mountain Fort (Fort Srebrna Gora), 18th-century fortress located in a village in the Lower Silesian Voivodeship
Ancient wall and corner sentry in the Castro Mount public park (Parque Monte del Castro) in Vigo, Pontevedra province, Rías Baixas, Galicia, Spain. Palm tree in the foreground.
Citadel of Belfort, France.
View From Gate To Kalemegdan In Belgrade, Serbia
Entrance gate and bridge to the fortificated town Terezin, Czech Republic. Black and white image.
Paramaribo, Suriname: Fort Zeelandia - built in the early 17th century, when Dutch settlers founded a trading settlement near the indigenous village of Parmurbo, later Paramaribo. The English captured the fort in 1651 and named it Fort Willoughby, after Francis Willoughby. In March 1667, the Zeelanders under Abraham Crijnssen conquered the fort and the settlement. After Suriname's independence (1975) it was used to hold and torture political prisoners - Abraham Crijnssenweg, Historic Inner City of Paramaribo, Unesco World Heritage Site.
Bielefeld - View to Scherpentiner, a huge Bastion able to block the Passage towards Teutoburg Forest, North Rhine Westphalia, Germany, 01.08.2021
Ankara Castle in Winter
Park located in Pamplona, Spain.
Kevelaer, Germany, June 26, 2024 - Graduation house and brine spring in the pilgrimage town of Kevelaer.
River, tourist town, forest, doors, windows, natural landscapes, streets
The imposing walls of Lucca, dating back to the Renaissance period
The upper town of Longwy in Lorraine is one of the most beautiful cities fortified by Vauban in France. UNESCO World Heritage Site
Fortifications at Fort George, on the Moray Firth.
Lucca, Tuscany, Italy 06 October 2022: People walk under the city walls at sunset
A recreational alley in the former moat of the Nysa Fortress, which is a tourist attraction and the backyard of the City Park.
Aerial view over the Nysa city center in Poland
Spittler Gate In Nuremberg, Germany
2018-04-15 Belfort  France. Fortress in Belfort city in France
Old City Walls of Salzburg, Austria
South Shields, England - August, 24 2010: The reconstructed west gate standing at the entrance to the remains of the Roman fort of Arbeia at South Shields, England. The fort was built circa AD 160 and marks the eastern end of Hadrians Wall - the northernmost frontier of the Roman Empire.  The gateway reconstruction was completed in 1986.
View of Valença do Minho fortaleza doorway in surrounding walls, 12th-13th  century. Entrance stone arch, Minho, Portugal.
Free Images: "bestof:Fortification of Huningue.jpg The intricate defences designed by the French military engineer Vauban during the reign of Louis XIV to defend Huningue Hüningen"
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