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aerial view of Fort Henry, Ontario Canada
Amsterdam, The Netherlands - July 25, 2011: Two Asian tourists are walking in front of the Hermitage museum in  Amsterdam The Netherlands. Hermitage Amsterdam is a dependency of the Hermitage Museum of Saint Petersburg on the Amstel river in Amsterdam and is located in the Amstelhof.
Muiden, Netherlands - 09-21-2023: Aerial from fortress Westbattarij Muiden in the Netherlands
People at Ankara Castle which is a fortification from ancient or medieval era in Ankara, Turkey. The exact date of its construction is unknown. Having been controlled by Romans and Byzantines earlier; it was captured by Seljuq Turks in 1073, by Crusaders in 1101, who gave it back again to the Byzantine and again by Seljuqs in 1227. The castle saw extensive repair by the order of İbrahim Paşa in 1832 during the Ottoman era.The ramparts of the old Ankara citadel nowadays serves as historic museum, tourists like to walk her, Ankara. There is a clear city view of Ankara from castle hill. People who go to Ankara first see the castle.
Westbeemster, The Netherlands-April 2022: View of concrete facade of Fort Spijkerboor, the most important fort in the defence line (or stelling) of Amsterdam now UNESCO World Heritage site
Section of Fort Knox, Prospect, Maine, USA
Curonian Spit, Fort Nerija (Kopgalis Fortress) - Construction of the Nerija Fort began in 1865 and continued intermittently until 1871. Curonian Spit is UNESCO World Heritage Site, Lithuania
Panoramic view of the perimeter walls of a disused magazine fort in Phoenix Park, Dublin, on a bright sunny day with green grassy slopes and crumbling bricks
Looking out from the top of the largest platform mound in the park, two people enjoy the 900 A.D. Middle Mississippian mound in Aztalan State Park with part of a reconstructed stockade. The Native American settlement was abandoned around 1200 A.D.
La Fortification, Fort Saint Pierre at sunset. Maastricht. The Netherlands.
Fort McHenry is a historical American coastal pentagonal bastion fort on Locust Point, now a neighborhood of Baltimore, Maryland.
Kevelaer, Germany, June 26, 2024 - Graduation house and brine spring in the pilgrimage town of Kevelaer.
Tipu Sultan Fort wall, Palakkad, Kerala, India
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.
Weesp is known for a bastion and fortifications that are part of the Defense line of Amsterdam and the Dutch Water Line
Breda Castle (Kasteel van Breda) is a castle in the old city of Breda, Netherlands.
Old demolished farrnhouse
Alessandria, Italy - February, 27, 2024: The Citadel of Alessandria (Cittadella di Alessandria), a star fort and citadel in the city of Alessandria, Italy built in the 18th century
This old military fortress has protected the entrance to the Port with its cannons for many decades and also served as a prison for a while
The perimeter walls of a disused magazine fort in Phoenix Park, Dublin, on a bright sunny day with green grassy slopes and crumbling bricks, with old chimney stacks
‘Naarden-vesting’ North-Holland, The Netherlands - 11/19/2023, Naarden was founded in 1350 by the Count of Holland. Due to its strategic location, the city was designed as a fortress with city walls, towers and gates. Naarden-Vesting is the best preserved authentic fortress in the Netherlands and the most important fortress in the Old and New Dutch Waterline.
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.
Belgrade, Serbia - July 25, 2021: 3d Bronze Model of Kalemegdan Fortress Park in Capital City Summer Day.
Remainings of the early 14th century Dutch 'Berkelpoort', water gate and part of the stone fortified wall in Zutphen
Westbeemster, The Netherlands-April 2022; View of one of the fortifications of Fort Spijkerboor, most important fort in Amsterdam defence line (or stelling) now UNESCO World Heritage site
Hanseatic city Elburg: City surrounding wall with brackstone and red color rooftops.
Weymouth, United Kingdom - July 18, 2016: Entrance to Nothe Fort with a gun turret above, Weymouth, Dorset, England, UK, Western Europe.
Colorfull houses at Amersfoort Nieuwland, a large city of within the Netherlands
Naarden, Netherlands - April 11, 2016: Barrack on ravelin Oranje-Promers in old fortified town of Naarden, North Holland, Netherlands
A Springtime afternoon at Kinderdijk - a village in the Netherlands known for its iconic 18th-century windmills. It has been UNESCO World Heritage since 1997
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