A competition to redesign electric pylons in Iceland produced these 3 standout entries including 'Land of Giants', humanoid sculptures that tower into the sky.

The massive Metropol Parasol opened in Seville, Spain recently: the product of four years of research, design and construction.

The St. Petersburg Zoo in Russia will move from a crowded urban area to a watery complex outside the city, representing all of the world's continents as a whole.

Traditional brick manufacturing is wasteful and releases loads of carbon dioxide into the air. This new, greener method could revolutionize construction.

Could this concept help NYC clean up its air? Plant-filled bubbles would form an air-purifying wall enclosing a dynamic public space.

These 12 works of art, from 16-foot towers and intricate pavilions to edible books and busts of Greek gods, are made from an unexpected material: sugar.

The designer of this Mexican eco-building used some wonderfully inventive building techniques to preserve and amplify the natural beauty of its surroundings.

An abandoned apartment building in Taipei houses a most unusual architectural academy: a workshop that celebrates and welcomes urban decay and ruin.

Earth-friendly design and clean energy drive this concept for an innovative bridge in Italy which may be able to provide clean power for up to 15,000 homes.

After humankind abandons the buildings and cities we have constructed, nature will take over rapidly. This art series imagines just what that will look like.

Designers and architects take a close look at butterflies, beetles and other insects and arachnids to inspire more efficient solar panels, buildings and more.

With their heavy metal exteriors and tall legs, these 12 Arctic and Antarctic structures look surreal and almost sci-fi against the white polar landscape.

Birds and bugs have some stylish new places to call home thanks to an art team that is working to promote biodiversity in the big city.

Green roofs aren't just for standard buildings - they're sprouting up on dog houses, bus shelters, cars, and even people's heads.

What to do with unsightly holes in the ground left by stalled construction? Perhaps we should cover them all with these inflatable 'iceberg' structures.