These are the ambitious plans which suggest skyscrapers of the future may house an entire city. The Endless City project is an award-winning proposal by sure Architecture, who propose turning skyscrapers into complete ecosystems. London is the proposed city for the mixed-use tower – which would feature huge ramps linking different sections of the structure. The company, whose design won the SkyScrapers and SuperSkyScrapers Competition, insist the structure would be a great space-saver in dense cities which have previously spread outwards rather than upwards. (Photo by Caters News)

These hyper realistic drawings are so lifelike they could pass for photographs. The incredibly detailed works of art were created by self-taught artist Ivan Hoo, from Singapore, who earns a living from his realistic drawings and paintings. The 31-year-old takes up to three days to complete the impressive pieces, which include animal portraits and still life drawings of everyday items such as a Starbucks cup. The A3 sketches are completed using a range of soft pastel pencils and are drawn from still life, or a photograph taken by Ivan himself. Here: Ivan Hoos drawing of a pug. (Photo by Ivan Hoo/Caters News)

In his adorable series of images, photographer Andrius Burba takes a look at all kinds of furry and fantastic moggies – from underneath. From furry fluff-balls to hairless kitties, felines from all corners of the globe make up the creative photographer's latest project. Andrius, from Lithuania, created a technique whereby his camera is hidden in a Perspex box, that the cats are encouraged to walk across – resulting in some truly wonderful captures. (Photo by Andrius Burba/Caters News Agency/Underlook)

These kaleidoscopic images are the work of one persistent photographer’s efforts to capture vibrant hues at the exact moment a wave breaks. Ryan Pernofski‘s stunning shots feature brilliant yellows, reds, blues and purples as an array of sunlight hits the water at the perfect time. What’s even more impressive: Ryan, a 27-year-old Australian, began shooting his popular masterpieces without using a professional camera, taking his iPhone out into the water instead. Ryan began experimenting with this method in 2012, using an underwater housing to protect his phone, as he could not afford a professional camera. (Photo by Ryan Pernoski/Caters News Agency)

An adorable baby owl has proved to be a real heart-breaker thanks to its heart-shaped head. Although Griffin the Lesser Sooty Owl might look like a feather duster, the tiny eight-week old chick will soon be ready to fly. And the heart outline that surrounds his giant eyes and beak means he is set to be the star of the bird show at Taronga Zoo, Sydney. (Photo by Caters News Agency)

These breath-taking photographs reveal the everyday lives of animals living in the wild. The incredible images were taken by wildlife photographer Wim van dan Heever, from Pretoria, South Africa, during trips to locations including Japan, Botswana and Svalbard. The 43-year-old has been photographing wildlife since he was a young boy and turned his passion for animals into a career and set up ODP Safaris. He has travelled across the globe to photograph wild animals – from lions and tigers, to elephants, dolphins and eagles – as they hunt, give birth and graze in their natural habitats. Here: Lions submerged in water. (Photo by Wim van den Heever/Caters News)

Bendy bombshell Zlata, 27, can use a computer while doing a handstand, deliver a presentation with her head tucked between her legs and bend over backwards to create a table. The stunning German, real name Julia Gunthel, shows her flexibility by creating a different theme for her head-turning calendars each year. (Photo by Zlata Calendar 2013/Caters News Agency)

These talented turtles have been "snapped" performing for the camera as they practice their synchronized swimming routine. Photographed underwater by Monste Grillo, 36, from Tenerife, Spain, the turtles are seen swimming in unison as well as touching fins as they circle towards the surface. After spending hours in the water off the coast of the Canary Islands in 2012, the photographs capture the gentle nature of the creatures as well as giving a fascinating glimpse into their behavior in the wild. (CATERS NEWS)