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The front entrance of the Citadel of Halifax, Nova Scotia
Castle, fortress, drawbridge gate
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.
Victoria, Canada – May 10, 2024: Fort Rodd Hill one of the only intact 19th century coastal military fortifications, Victoria, BC Canada.
Entrance of Fort Moultrie on Sullivan's island Charleston, South Carolina from the American Revolutionary war protecting the harbor with gun battery blue cloudy sky
Castle eiland Boston Massachusetts op een zonnige dag in juni
Sandy Hook, NJ - USA - Jan 17, 2021: Closeup of Battery Potter, part of Fort Hancock, a former US Army fort at Sandy Hook.
Garrison entrance of Fort KcHenry, Baltimore, Maryland, USA
Rear bastion of the Fort McClary, a former defensive fortification used throughout the 19th century to protect approaches to the harbor of Portsmouth, New Hampshire, Kittery, ME, USA
Plaque on Bunker hill honouring the troops under the command of Colonel William Prescott men lost during the War of Independence, including Dr Joseph Warren.
These mortar batteries at Fort Hancock of Sandy Hook, NJ were among the first Endicott-style built as part of New York Harbor defense against attack from sea during World War I. By the 1930's these very mortar batteries and the guns that were seated in them were removed and rendered obsolete however the tunneling system remained as a command center for all New York Harbor defenses. The command center rooms contained communications, plotting and telephone, maps, and emergency shipping and office spaces for military commanders playing an intricate role during World War II.
A fort in Sweden in 1990
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.
Colonial age fort
Stairs lead to the Osage County Courthouse in Pawhuska, Oklahoma, which is in morning sunlight, on a hill above the business district of the small town.  The courthouse was the site of the trials relating to Osage murders in the early 20th century, depicted in the Killers of the Flower Moon book and movie.
Ft. Washington, Maryland, USA - June 1, 2016: Bridge Entrance to Fort Washington, a military fort established in the 1800's to protect Washington DC situated on the Maryland side of the Potomac River
Boston Common with a Quote from Mayor James Michael Curley on the entrance to the Common. Boston, Massachusetts,
medieval architecture
Fortress wall at Fort Knox State Park, Prospect, Maine, USA
Boston, MA, USA May 5 People enjoy relaxing on a park bench near the imposing stone fortress walls of Fort Independence in Boston
An old cannon on display at Fort Vancouver Washington from the historic past
Entrance to Halifax Citadel, Halifax, Nova Scotia, Canada
Ft McHenry in Baltimore, MD
Part of the Kraków Fortress (Festung Krakau) - a 19th-century Austrian fortification around Krakow built on the orders of Emperor Franz Joseph. The fort is located in Bronowice at Rydla Street. It was created in the late 1850s.
Massachusetts Gate on Bunker Hill, Boston, Massachusetts, USA.
Halifax, Canada
Appalachian Trail stretch of Connecticut
Ft. Snelling, St. Paul Minnesota
Masonry wall fortifications using coquina stone and moat of Castillo de San Marcos. This oldest of Spanish forts located in Saint Augustine Florida the oldest city in the United States dating to 1565 .
Free Images: "bestof:Fort Mass.jpg Entrance to Fort Massachusetts 2006-08-18 own assumed Squatchy~commonswiki Fort Massachusetts Mississippi"
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Sunset in Juan Griego from Fortín de La Galera.jpg
San Carlos de la Barra Fort, Isla de San Carlos, Estado Zulia, Venezuela.jpg
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Panoramic of Juan Griego 45.jpg
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Hadrian's Wall west of Housesteads 3.jpg
360° Panoramic view of Santa Rosa de la Eminencia Castle.jpg
Marin Headlands with Rodeo Beach.jpg
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Green Bottom WMA looking toward Clover Site.jpg
Lion Venice fortress port Heraklion.jpg
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Detail venetian fortress harbour eastern part and dam Heraklion.jpg
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Fort Niagara LOCGeneral View of Battery.jpg
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Fort Ord Soldiers Club HABS.jpg
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Map highlighting Fort Russell Township, Madison County, Illinois.svg
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