A rich and storied military history in and around the British Isles has meant over the years a number of discoveries of old and often forgotten hardware have been made.
Here are some of the more unique military finds in unexpected places - are there any others you can think of?
WW2 bunker in a garden
A man who bought a new house in Middlesbrough found something that was not in the property's details - a Second World War bunker.
Neighbours told new homeowner Chris Scott about the bomb shelter - something he had dismissed as a myth that had been exaggerated over the years.
But when looking through the overgrown grass in his garden, he discovered what he originally thought was a drain pipe cover, but once he opened it, emerged as a ladder leading underground.
The bunker was initially full of water, due to the previous owner apparently using it to water his garden.
After pumping water out, Mr Scott gained entry inside the bunker, which measures 5m x 2.5m, and is around six foot in height.
Watch: The Second World War bunker found in a garden.
The truth behind the bunker remains a bit of an urban mystery for those in the area.
Some experts believe it could have been a public bunker for 50 people along the street.
Historians say access would have been difficult for children and the elderly, while the high-quality build suggests it may have been a Government building.
Military finds on the River Thames
Mudlarkers are people who search for interesting artefacts when there is a low tide - we met one person who regularly combs the beaches on the banks of the River Thames and has made numerous military finds.
Nicola White’s collection of military artefacts ranges from military buttons, pocket watches through to Royal Navy crockery, as well as live bullets and grenades.
Her other discoveries include luggage tags belonging to First and Second World War personnel.
Ms White's theory for so many military items being found on the banks of the Thames is its proximity to Woolwich Arsenal, once a large armament manufacturer.
Watch: The mudlarker who's found military history on the River Thames.
Battle of Britain Hurricane near the Thames Estuary
The pilot bailed out but the aircraft plummeted to the ground from 17,000 feet, vanishing underneath more than 30 feet of thick mud in the village of Fobbing.
World War Two aviation enthusiast Roger Pickett, who was helping with the dig, said: "It hit the ground so hard that whatever fuel was in the tanks, [it] just didn't ignite."
"We had a witness who came across here when he was eight and all he saw was a big water-filled hole," said excavation organiser and aviation archaeologist, Gareth Jones.
The Hurricane had been submerged beneath the dense mud for 80 years but after much digging, signs of the historic aircraft surfaced.
Parts of the engine were first discovered, then the control column, the tail wheel and a Browning gun.
The propeller hub was later found, suggesting the excavators they had dug as deep as they needed to.
As parts of history were rescued from the mud, a flying Hurricane flew over the site as a nod to the aircraft's vital roles over the skies of Britain.
Watch: Unearthing a Battle Of Britain Hurricane that 'disappeared'.
WW2 armoured vehicle found underground
This is a true tale of myth becoming a reality.
Volunteers spent five days digging to recover a 13-tonne Buffalo LVT (Landing Vehicle Tracked) buried nearly 30ft underground for 74 years.
The Buffalo was one of 16 deployed to Lincolnshire to protect the town of Crowland in March 1947 after huge snowstorms and severe weather caused the nearby River Welland to burst its banks and flood about 30,000 acres of land.
When the water was pumped back into the flood plain, the Army lined up the 16 Buffalo landing craft to act as a makeshift dam and, although they were weighted down with sandbags, five of the amphibious vehicles floated away.
Watch: How do you unearth a military vehicle after 74 years underground?
Farmer Daniel Abbott with bomb-detecting gear concluded there was definitely something buried at Crowland.
He said: "I wrote to the MOD [Ministry of Defence], asking them if there was anything left behind.
"They said they'd forgotten about it and there could be the possibility of something being left behind."
The Buffalo they discovered there may have seen action during the crossing of the Rhine in the Second World War.
Due to the preservation qualities of clay, the vehicle, now recovered, is in remarkably good condition.
Seven-year excavation of Salisbury Plain
Building work over the past seven years, part of the British Army Basing Programme, allowed archaeologists to access vast areas of Salisbury Plain, located just a few miles from the famous Stonehenge site.
Among the remarkable discoveries made there are a series of First World War training tunnels, dug through the chalk, in Larkhill, Wiltshire.
Watch: More about the finds made at Salisbury Plain
Cover image: Crowland Buffalo Tank discovered after 74 years underground (Picture: Will Tyrell).