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Panoramic View on some watch towers at Fort Henry, Kingston, Ontario
Looking out over Lake Ontario, there are people relaxing beside the lake at Niagara on the Lake, Ontario, Canada.
View of the Neva and the Oreshek (Shlisselburg) Fortress, on a cloudy day illuminated by the sun
Aerial view of Fort Chambly during sunset summer by the Richelieu river
aerial view of Fort Henry, Ontario Canada
Buckhorn Lake, Selwyn, Ontario, Canada
Shot of Georges Island (National Historic Site) located in the Halifax Harbour. The island has fortifications and used to function as a prison and an Acadian internment camp.
Autumn colors near Ottawa river valley in sunny day
The Pointe de la Martiniere parc of Levis with in background the Orleans island and the Montmorency waterfalls (Levis, Chaudiere-Appalaches, Quebec, Canada)
Scenic view of the Late Ordovician Dawson Point Formation, a rare limestone formation, from the shore of Lake Temiskaming, Haileybury, Temiskaming Shores, Ontario
Fort Chambly, a national historic site in Quebec, Canada.
Canadian flag in Thousand Islands National Park New York State and Ontario Canada
Point Henry, Martello Tower, Dry Ditch and Fort Henry National Historic Site view from St. Lawrence River in Kingston, Ontario, Canada.
Arlington, Virginia, USA - May 5, 2024: An air cannon and loudspeakers used for bird control near an active runway at Ronald Reagan Washington National Airport along the Potomac River.
Open to visitors since 1909, Fort Ticonderoga formerly Fort Carillon, is a large 18th-century star fort built by the French at a narrows near the south end of Lake Champlain, in northern New York
daytime view of the old Quebec city skyline from the La Terrasse Saint-Denis (Quebec, Canada).
Kingston's Marina with fortifications in the foreground and the Military College in the background.
Abandoned waterfront lighthouse on a stormy day (Anderson Hollow lighthouse, New Brunswick, Canada)
Fort McHenry is a historical American coastal pentagonal bastion fort on Locust Point, now a neighborhood of Baltimore, Maryland.
Kingston's marina with boats and Martello (Murney) tower during summer day
Chambly, Quebec, Canada – 9 July 2022 : The Fort Chambly National Historic Site in Chambly, Quebec, Canada
From Fort Washington's elevated ramparts, behold the picturesque vista of ruins, the meandering Potomac River, and the distant silhouette of Washington D.C.
Cannon at Chateau Frontenac Hotel in Quebec City, Canada.
One of three Martello Towers in Kingston Ontario Canada
Lennox and Addington Dark Sky Viewing Sheffield Conservation Area from Ontario
Fort Chambly, a national historic site in Quebec, Canada.
daytime view of the old Quebec city skyline (Quebec, Canada).
Pampus, Holland, July 11 - 1990: Historical aerial photo of the artificial island Pampus, a late 19th-century sea fort located in the IJmeer
Hastings, Canada.
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