Today, all that remains are the three concrete gun emplacements, which were left behind.

The three concrete gun emplacements have been left behind, and still remain there to this day.

All the government buildings were demolished during the winter of 1928-29 leaving the three concrete gun emplacements behind.

Dutch Island was later heavily fortified with massive concrete gun emplacements.

These Victorian fortifications feature concrete gun emplacements, observation posts and underground rooms.

He ordered me to have the boxes moved to the edge of the deepest of the pits dug for the concrete gun platforms.

Allied planners had judged from the size of the concrete gun emplacements that the guns must be around 150 mm in calibre.

A new concrete gun emplacement which contained a single 75mm gun was constructed on the eastern part of the Hilsea lines.

The guns were mounted in concrete gun emplacements and deployed in a semicircle around the fort.

At Ermine itself there is virtually no trace of the radar station, although the concrete gun emplacements are still there.

Beginning in the early 20th Century, the seven major concrete gun batteries listed below were built and armed at Fort Wetherill.

The Army therefore commenced the construction of modern concrete gun emplacements following the designs of the Endicott Board.

During World War II, this fort served as a military reservation, or a "concrete gun battery" for the US Army.

Two open concrete gun pits for Mk VII guns were constructed in 1911 with a large underground magazine between the pits.

Between Calais and Boulogne-sur-Mer considerable parts of the concrete gun emplacements and associated bunkers remain, in accessible although often somewhat dangerous condition.

Although several of these batteries are now overgrown with brush, they offer what is perhaps the longest linear concrete gun line in the coast defenses of New England.

Its setting is, appropriately, amongst concrete gun emplacements and other fortifications in an area that was one of the most heavily fortified parts of Australia during the war.

These instruments, which contained telescopes on massive, finely geared mountings, were located variously in base end stations, DPF bunkers or pillboxes, or built-in to concrete gun emplacements.

The area of Normandy targeted by Operation Aquatint had yet to receive any concrete gun emplacements but there was a network of coastal artillery batteries able to provide interlocking arcs of fire.

The fort had two BL 9.2 inch Mark 10 cannons that were put into concrete gun emplacements (pictured) and barracks that were finished just before the start of WWII.

But more than the sad-looking people, what remains most striking after a two-day tour of towns and villages is the large number of oval concrete gun posts sprouting like mushrooms from fields, roadsides and beaches.

D-Day fighters won a foothold for themselves on June 6, breaching what Hitler called his Atlantic Wall of concrete gun emplacements along the French coast, but much heavy fighting remained to be done.

Although the fort's Civil War role proved theoretical, massive concrete gun batteries were added later and Fort Stevens was used for coastal defense and training duty in two world wars before being de-activated in 1946.

In 1893, a huge construction project was begun, to build the massive concrete gun emplacements for the 10-inch guns of Fort Strong, one of the new Coast Artillery forts planned to defend Boston Harbor.