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.
With the full moon looming behind him, this polar bear nestles down for the night .
Pouncing down on top of his twin brother, these two snow leopard cubs practice their kung-fu moves .
A German photographer travelled around Africa where he met and photographed members of tribes in a series of intimate portraits .
A DETERMINED great blue heron holds on tightly to its prey as the furry gopher attempts to wriggle free .
STAIRWAY obsessed photographers have captured psychedelic shots that will mesmerise you .
Sprawled out on top of a log, this sleeping leopard takes a relaxing break from his daily routine .
A British photographer has captured the beauty of London in a stunning series of landscapes shots .
THIS RING of fire in the sky is the annular solar eclipse that wowed our cousins down-under .
Playing, splashing and generally messing around, these polar bears show they certainly have a soft spot for the water, and not just each other .
A doting seal smiles at her sweet little pup as she tickles its tummy on the beach .
THIS incredible shimmer of silver fish mirrors the image of that of an underwater tornado .
SAT with his arms folded and a cross look on his face, this Gorilla looks like he's had enough of the Christmas holidays already .