Futuristic designs for eco-friendly urban housing and green space often blur the lines between the two, making efficient use of limited space in the city.

Think that there's nothing uglier than an evil-smelling, dust-streaked pile of old car tires? You need the creative vision of Korean artist Ji Yon Ho - because shredded rubber can be beautiful, as these sculptures show.

Nature dazzles us as we stare in wonder at spectacular wildlife found in this world. Here are 29 rare, exotic animal photos, from the bizarre to the beautiful.

The paper bags we get our fast food in are usually seen as trash. But at least one artist is taking them back to their roots and giving them new lives as trees.

To meet the sustainable standards of the future, green architects design ultra-tall buildings that combine a range of functions like farming and housing.

Tire recycling is on a roll, as shown by these six gorgeous products that add quirky style to our homes.

Fear of heights? Then you might want to stay away from these dizzying outdoor overlooks and elevated eco parks located thousands of feet above the ground.

Four types of solar tree, from concept to reality, turning solar paneling into works of Art.

Sustainability and modern style go hand in hand in these 12 amazing green home designs, from a spinning dome home to a solar prefab home.

Here are 25 eco-jewelry fashions in an irresistible blend of function and style, some recycled wonders and some will make you wonder what were they thinking.

Upcycling is perhaps a buzzword of the day, but there is no doubt that recycling these otherwise forgotten pieces of driftwood is a spectacular improvement.

Rooftop gardens give a view of nature, improve air quality, provide roof insulation, delay storm water runoff and increase natural habitat spaces for birds.

While some crop circles can be explained, others remain a mystery. The crop circles that cannot be proven to be man-made often exhibit peculiar characteristics.

Some of the newest, most adventurous, mostly creatively practical green product designs floating around studios or stores today.