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
A cheeky gorilla sticks her tongue out and plays up for the camera at Bronx Zoo .
An aerial view of flooding in Gloucestershire .
TRYING their best to wriggle away, three adorable tiger cubs receive their health checks at Chester Zoo .
ARMED with her camera, bikini and flippers, this brave diver goes swimming with SHARKS .
DIVING down at a speed of 75mph, this is the moment a hungry osprey caught his prey .
WITH the phosphorescent blobs and mesmerising patterns, these spectacular images may look like the hall marks of an enchanted forest but it is in fact the scene of thousands of dancing FIREFLIES .
NEW DELHI, A woman activist of India's main opposition Bharatiya Janata Party crosses a police barricade near the residence of ruling Congress party chief Sonia Gandhi during a protest against the recent rape of a five-year-old girl in New Delhi, India, April 21, 2013 .
BURSTING from the water, a beautiful but deadly Sumatran tiger jumps for food in an Indonesian zoo .
A pair of snarling foxes go paw-to-paw and brawl after unexpectedly crossing paths .
A SERENE turquoise glow glimmers from underneath these powerful icebergs .
As sunlight cascades through its vibrant stained glass windows, every inch of the Nasir-ol-Mulk Mosque bursts with colour .