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Autumn view of the Great Serpent Mound, the largest serpent effigy in the world, extending about 1,370 feet (420 m).  Originally though to have been constructed by prehistoric the Adena culture, scholars now think it was built by the Fort Ancient culture (1000-1650 CE), an Ohio Valley-based, mound-building society.  The Fort Ancient culture was influenced by the contemporary Mississippian culture society based along the mid-Mississippi River valley and extending as far north as the Great Lakes area.
Blaye, Nouvelle-Aquitaine, France - October 31, 2022: Architecture detail of the Blaye citadel, close to the town in bad weather on an autumn day
Prospect, USA - October 9, 2021. Tourists walking along the wall at Fort Knox, Prospect, Maine, USA
Sites of Charleston Harbor, South Carolina, Fort Moultrie
Medieval metal cannon as a monument in the park
Aerial view of Fort Clinch Fernandina Beach Florida photograph taken Dec 2021
close view of a cannon in an old and Abandoned military coastal bunker in Silleiro Cape with lighthouse in the background, Galicia
Symbolic/spiritual mounds created by Native Americans in Effigy Mounds National Monument - May 2010
Victoria, Canada – May 10, 2024: The Belmont Battery  and it's concrete tower at the historic Fort Rodd Hill fort, Victoria, BC.
Replica WWII Mark V11 6 inch naval gun in gun emplacements at Blyth Battery above Blyth beach near the Port of Blyth on the Northumberland coast.
St. George's Island,  Bermuda: Fort St. Catherine, coastal artillery fort at the North-East tip of St. George's Island, in the Imperial fortress colony of Bermuda - named after Catherine of Braganza, Portuguese Princess, Queen of England - The first wooden fort was built on the site in 1612, the current structure dates mostly from the 19th century - Coot Pond Road - UNESCO World Heritage Site
Fort Knox on the Penobscot River, Maine, USA. Built between 1844 and 1869, it was the first fort in Maine built of granite.
Beijing ancient city wall
moat around the fort
Mirador Base Las Torres in Torres del Paine National Park, Chile
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.
Two historic canons pointed towards Halden city from Fredriksten Fortress in Norway. Copy space above.
Austratt, Norway - July 06, 2022: Austratt Fort was constructed in 1942 by the Germans and the centrepiece is a triple 28 cm gun turret from the German battleship Gneisenau. Selective focus.
New Hope, USA - June 26, 2021. Locktender's House Museum at Delaware Canal State Park, New Hope, Pennsylvania, USA
Ancud Chile - October 21 2023: Historic Spanish Fort San Antonio in Ancud Chile With Cannons Facing out to the Pacific Ocean
second world war era anti-tank bazooka guns
Fort McHenry, Flag and Canons
Old town Quebec City Cityscape in the morning. The Porte St. Jean's Gate was built in 1693.
Mission San Jose, San Jose y San Miguel de Aguayo, is one of five existing missions along the San Antonio River.  Built by Spaniards to support their quest for exploration from New Spain (present day Mexico), they eventually became centers for spreading the Catholic faith to frontier Indians.  The five missions within the San Antonio Missions National Historical Park florished between 1747 and 1775, but still experienced raids by local Comanche and Apache Indians.  Mission San Jose was knows as the Queen of the Missions, due to its extensive grounds and fortified compound.
The historical ruins found along the waterfront in Point Plesant Park in Halifax, NS.
Plouharnel, France - Mar 29, 2024: Vannes Coastal Defense battery. It covers the Quiberon peninsula as well as the Gulf of Morbihan. Sunny spring day. Selective focus
Corbett, Oregon - May 26, 2023: Vista House at Crown Point along the Columbia River Gorge.
Aerial view of Fort Clinch a coastal fort in Fort Clinch State Park Ferandina Beach Florida photograph taken Nov.2017
Krupp gun sits in the Botanic Gardens overlooking the city of Wellington
Free Images: "bestof:Battery Russell, Fort Stevens, Oregon - NARA - 299687.jpg Scope and content Beginning with the Civil War the U S Army recognized a need to provide for coastal"
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