TIME TRAVELLING PHONE APP

OFFERING a glimpse into the past, a mash-up of old and new photographs show how the world’s biggest cities have changed. A new phone app allows users to travel back in time by overlaying vintage images, such as London's Tower Bridge in 1892 or the Eiffel Tower in 1940, with how the locations look today. Users can compare the past and present of cities such as London, Paris, Washington and Saint Petersburg. This window to the past was created English entrepreneur David Webb, 45, the creator and CEO of the Timera app.

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A middle spotted woodpecker swoops into her nest and feeds her young in a forest in Trentino, Italy .

THIRSTY SQUIRREL TAKES A BREAK

DIPPING his head into the vase of water, this little squirrel takes a refreshing break from an afternoon of eating .

SLEEP PARALYSIS DREAMS TURNED REALITY

SITTING on a burning sofa unable to move, one man turns his terrifying dreams into reality .

BATTY ABOUT BATMAN - MAN SPENDS £65K ON COLLECTION

Kevin Silva, 52 from Indiana in the USA, has spent an estimated £65K ($100K) on Batman trinkets over the years, and even keeps his 2,500-item haul in his very own basement 'Bat Cave' .

HUNGRY HERON STRUGGLES TO HOLD ONTO ITS CATCH

A DETERMINED great blue heron holds on tightly to its prey as the furry gopher attempts to wriggle free .

BABY WHALE AND MOTHER LAP UP TOURIST ATTENTION

A grey whale and her calf greet an audience of awestruck admirers on the Pacific coast of Baja California Sur, Mexico .

CHEEKY WHITE TIGER CUB

WITH HIS PAW covering his mouth, this cheeky cub looks amused by something .

STUNNING WINTER PHOTOGRAPHS OF THE HIGHEST RAILWAY IN THE ALPS

ROLLING across a 65-metre-high viaduct in the Alps, the red carriages of the Bernina Express add a splash of colour to the spectacular snow-covered Swiss surroundings .

EASTER ISLAND REPLICA STATUES DESTROYED IN SEA FALL

A project to create an underwater tribute to the stone Moai statues of Easter Island ended in disaster when 15 replica structures were destroyed after toppling from a boat and into the sea .

UNDERWATER DIVING DOGS

WITH A STERN look of determination on their faces, these adorable pooches perfect their doggy paddle as they dive head first into a swimming pool .

THE UNDERWATER WONDERLAND

SEA LIFE and greenery in one shot show nature at its very best .

MESMERISING STAIRWAY SHOTS

STAIRWAY obsessed photographers have captured psychedelic shots that will mesmerise you .