A beautifully designed nature observation tower in Latvia ascends 120 feet into the sky and features caged balconies from which to enjoy the view along the way.

A Tokyo artist uses his architectural model making skills to create these gorgeous miniature sculptures in tiny glass bottles.

The 7 amazing animal whisperers profiled here practice a kinder, gentler form of inter-species communication with thousands of years of history to back it up.

Bacteria is essential to human health and that of the earth, but did you know it can also clean up radiation & pollution, target tumors and turn waste into fuel?

Want to take that green on the road? This lovely art project put a lush garden in a Chicago train car and circled downtown for hours.

China's Zhangjiajie National Park features breathtaking geological formations - seemingly gravity-defying pillars that inspired the floating mountains in Avatar.

Could we one day harness the awesome power of tidal waves with sea-bound platforms? One designer thinks this method could be the answer for clean power.

These 10 cute-as-can-be electric cars and electric car concepts add a fluffy dollop of squeal appeal to your sustainable, pollution-free driving experience.

GPS tracking, text messages, sonograms, unmanned planes and even Hubble Telescope software are all helping researchers save endangered species.

These compact, often self-sufficient structures are easily assembled and disassembled so they can go anywhere you want to be - even remote mountain ridges.

Amber (fossil tree sap) can contain prehistoric insects, crustaceans, frogs and lizards, preserved in exquisite detail and all many millions of years old.

Rain barrels aren't your only rain harvesting option - you could choose decorative downspout planters, 2-liter bottles or a garden table that doubles as a tank.

Stark, dark and bleak, the architecture of Hugon Kowalski takes a no-frills, utilitarian approach to facing the climate change-induced problems of the future.

These 10 odd Uranium Glass (also known as Vaseline Glass) home and tableware items may glow vividly green under UV light but emit negligible radioactivity.

From fascinating phenomena and optical effects like earthshine and eclipses to phases, movement & texture, these images show off the moon in all its beauty.