What lies beneath this building site? Britain's great hope of winning the pre-WW2 arms race against Nazi Germany. The “Shadow Tunnels” under Birmingham's Longbridge site in are the remnants of Lord Austin's secret plans that were hatched to bolster British military might in the face of German military aggression. Pictures show the site where munitions workers produced the Merlin engines that powered the Spitfires and Hawker Hurricanes used to win control of the British skies during the Battle of Britain in 1940. Local urban explorer Tom Robinson, 20, delved into the tunnel to bring back exclusive picture of Great Britain's hidden wartime heritage
COURAGEOUS climbers descend 400 metres as they manoeuvre their way through thick walls of ice .
Jostling their quills into the noses of some unlucky cubs, this is the moment two feisty porcupines ALMOST defeat a pride of seven lions .
AN American accountant has grown the world's biggest MELON and smashed his way into the record books with his mammoth 350 .
LINED up one by one on a deer’s back, these little birds give their wings a break as they catch a ride across London .
A photographer has captured stunning photographs of the Milky Way above picturesque landscapes in the UK and Italy .
HOPPING onto the scales, these adorable baby Humboldt penguins are ready for their first weigh-in .
This is the moment a nimble red fox and a lumbering Alaskan brown bear were locked in a tense stand-off .
BASKING in smug satisfaction, a confident squirrel gives a wink to the camera .
In the calm waters of Greenland, gigantic icebergs dwarf everything around them .
VENTURING into the ocean with self-made spears and nets, the fishermen of Zanzibar put their lives on the line when they catch food for their families .
A diver attempts to control rising numbers of lionfish by feeding the venomous species to Caribbean reef sharks .