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.
UNDERWATER and above-water seaside shots show the best of British beach-life .
WITH their robotic movements and pristine uniforms, these are the sexy traffic girls of North Korea that are becoming iconic figures in the secretive state .
A BEAUTIFUL sight for the eyes and the imagination, these liquid sculptures take shape in many different colours and formations .
SITTING quietly at the edge of the lake, these two baby bears watch and learn as the adults hunt for fish .
A chipmunk, with his cheeks full to bursting, has no intention of leaving with an empty stomach .
SPLASHING around in a paddling pool, this little elephant soaks up the sunshine .
WITHOUT A care in the world, this little snow monkey puts his feet up and settles in for a snooze .
ARMED with her camera, bikini and flippers, this brave diver goes swimming with SHARKS .
A cheeky gorilla sticks her tongue out and plays up for the camera at Bronx Zoo .
Beautiful turquoise waves rise and fall in a series of stunning images taken along the coastline of south-eastern Australia .
HOPPING onto the scales, these adorable baby Humboldt penguins are ready for their first weigh-in .
Destroyed buildings and overturned cars are seen after a huge tornado struck Moore, Oklahoma, near Oklahoma City, May 20, 2013 .